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World Patent Information / Elsevier


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Impact Factor

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5-Years IF

12

5-Years H index

Main indicators


Raw data


IF AIF IF5 DOC CDO CCU CIF CIT D2Y C2Y D5Y C5Y %SC CiY II AII
19900.13131654126 (%)0.04
19910.10.01285940.072611412 (%)0.04
19920.09349320.02259136 (%)0.04
19930.113112462147 (%)0.05
19940.123415865154 (%)0.04
19950.193219020.011165158 (%)0.07
19960.232321320.0166159 (%)0.09
19970.020.260.012623920.0135511541 (%)0.09
19980.280.011425350.021491461 (%)0.1
19990.320.01272801012401291 (%)0.13
20000.390.023031070.0211411222 (%)0.15
20010.393034020.01257120 (%)0.14
20020.42236230.013160127 (%)0.17
20030.430.0132394100.03105521231 (%)40.130.18
20040.020.480.013242640.01145411411 (%)0.19
20050.520.022645290.0212641463 (%)0.2
20060.020.510.023248450.01625811423 (%)0.2
20070.090.450.0828512250.052858514411 (%)10.040.18
20080.050.480.0625537220.04416031509 (%)0.2
20090.080.490.0628565250.04185341438 (%)0.19
20100.130.460.0839604290.052253713911 (%)0.17
20110.040.490.0852656390.065067315212 (%)10.020.19
20120.080.520.1656520.0891717217 (%)0.19
20130.120.580.1656430.0752614415 (%)0.2
20140.60.07656620.0901198 (%)0.2
20150.610.2656720.1109118 (%)0.19
20160.680.06656530.080523 (%)0.2
20170.73656750.1100 (%)0.22
IF: Impact Factor: C2Y / D2Y
AIF: Average Impact Factor for series in RePEc in year y
IF5: Impact Factor: C5Y / D5Y
DOC: Number of documents published in year y
CDO: Cumulative number of documents published until year y
CCU: Cumulative number of citations to papers published until year y
CIF: Cumulative impact factor
CIT: Number of citations to papers published in year y
D2Y: Number of articles published in y-1 plus y-2
C2Y: Cites in y to articles published in y-1 plus y-2
D5Y: Number of articles published in y-1 until y-5
C5Y: Cites in y to articles published in y-1 until y-5
%SC: Percentage of selft citations in y to articles published in y-1 plus y-2
CiY: Cites in year y to documents published in year y
II: Immediacy Index: CiY / Documents.
AII: Average Immediacy Index for series in RePEc in year y

 

50 most cited documents in this series:


#YearTitleCited
11981Citation rates to technologically important patents. (1981). Narin, Francis ; Woolf, Patricia ; Carpenter, Mark P.. In: World Patent Information. RePEc:eee:worpat:v:3:y:1981:i:4:p:160-163.

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76
22003Patent information for strategic technology management. (2003). Ernst, Holger . In: World Patent Information. RePEc:eee:worpat:v:25:y:2003:i:3:p:233-242.

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55
31983Validation study: Patent citations as indicators of science and foreign dependence. (1983). Narin, Francis ; Carpenter, Mark P.. In: World Patent Information. RePEc:eee:worpat:v:5:y:1983:i:3:p:180-185.

Full description at Econpapers || Download paper

31
42006Patent network analysis of inter-industrial knowledge flows: The case of Korea between traditional and emerging industries. (2006). Park, Yongtae ; Han, Yoo-Jin . In: World Patent Information. RePEc:eee:worpat:v:28:y:2006:i:3:p:235-247.

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20
52006Mapping nanotechnology patents: The EPO approach. (2006). Scheu, M. ; Verbandt, Y. ; Forster, W. ; Veefkind, V. ; Absalom, R. ; Galan, Molina E.. In: World Patent Information. RePEc:eee:worpat:v:28:y:2006:i:3:p:204-211.

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19
62008Visualizing patent statistics by means of social network analysis tools. (2008). Sternitzke, Christian ; Bartkowski, Adam ; Schramm, Reinhard . In: World Patent Information. RePEc:eee:worpat:v:30:y:2008:i:2:p:115-131.

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18
72011Using patents and publications to assess R&D efficiency in the states of the USA. (2011). Sharma, Seema ; Thomas, V. J. ; Jain, Sudhir K.. In: World Patent Information. RePEc:eee:worpat:v:33:y:2011:i:1:p:4-10.

Full description at Econpapers || Download paper

15
82003Determinants of foreign patents in China. (2003). Sun, Yifei. In: World Patent Information. RePEc:eee:worpat:v:25:y:2003:i:1:p:27-37.

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15
92002The electric vehicle:: Patent data as indicators of technological development. (2002). Pilkington, Alan ; Dyerson, Romano ; Tissier, Omid . In: World Patent Information. RePEc:eee:worpat:v:24:y:2002:i:1:p:5-12.

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15
102006Patent portfolio analysis as a useful tool for identifying R&D and business opportunities--an empirical application in the nutrition and health industry. (2006). Fabry, Bernd ; Koster, Martin ; Langholz, Jens ; Ernst, Holger . In: World Patent Information. RePEc:eee:worpat:v:28:y:2006:i:3:p:215-225.

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14
111983Patent trends as a technological forecasting tool. (1983). Campbell, Richard S.. In: World Patent Information. RePEc:eee:worpat:v:5:y:1983:i:3:p:137-143.

Full description at Econpapers || Download paper

12
122008Assessment of technological capability in science industry linkage in China by patent database. (2008). Motohashi, Kazuyuki. In: World Patent Information. RePEc:eee:worpat:v:30:y:2008:i:3:p:225-232.

Full description at Econpapers || Download paper

12
132002The patent activities of Korea and Taiwan: a comparative case study of patent statistics. (2002). Imm, Keun-Young ; Jung, Sungchang . In: World Patent Information. RePEc:eee:worpat:v:24:y:2002:i:4:p:303-311.

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11
142007The rigour of EPOs patentability criteria: An insight into the induced withdrawals. (2007). van Pottelsberghe de la Potterie, Bruno ; Lazaridis, George ; van Pottelsberghe de la Potterie, Bruno, . In: World Patent Information. RePEc:eee:worpat:v:29:y:2007:i:4:p:317-326.

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10
152011Patent data as indicators of wind power technology development. (2011). Giannoccaro, Dimitris ; Ackermann, Thomas ; Bengtsson, Rune ; Dubaric, Ervin . In: World Patent Information. RePEc:eee:worpat:v:33:y:2011:i:2:p:144-149.

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10
162003Text mining applied to patent mapping: a practical business case. (2003). Pedrazzi, Giorgio ; Turra, Roberta ; Fattori, Michele . In: World Patent Information. RePEc:eee:worpat:v:25:y:2003:i:4:p:335-342.

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9
172003Patinformatics: Tasks to tools. (2003). Trippe, Anthony J.. In: World Patent Information. RePEc:eee:worpat:v:25:y:2003:i:3:p:211-221.

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9
181999Trade marks: complementary to patents. (1999). Rujas, Javier . In: World Patent Information. RePEc:eee:worpat:v:21:y:1999:i:1:p:35-39.

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8
192003The development of intellectual property in China. (2003). Yang, Deli . In: World Patent Information. RePEc:eee:worpat:v:25:y:2003:i:2:p:131-142.

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8
202003Historical perspectives on IP protection for software in selected countries worldwide. (2003). Diallo, Barrou . In: World Patent Information. RePEc:eee:worpat:v:25:y:2003:i:1:p:19-25.

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7
212000The referencing of prior art documents in European patents and applications. (2000). Akers, Noel J.. In: World Patent Information. RePEc:eee:worpat:v:22:y:2000:i:4:p:309-315.

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6
221981Analysis by means of a gravitation model of international flows of patent applications in the period 1967-1978. (1981). Slama, Jiri. In: World Patent Information. RePEc:eee:worpat:v:3:y:1981:i:1:p:2-8.

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6
232009A patent based evaluation of technological innovation capability in eight economic regions in PR China. (2009). Meyer, Martin ; Shu, Fang ; Yang, Zhiping ; Chen, Yunwei ; Bhattacharya, Sujit . In: World Patent Information. RePEc:eee:worpat:v:31:y:2009:i:2:p:104-110.

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6
242008Text mining and visualization tools - Impressions of emerging capabilities. (2008). Yang, Cynthia Barcelon ; Klose, Thomas ; Akers, Lucy . In: World Patent Information. RePEc:eee:worpat:v:30:y:2008:i:4:p:280-293.

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5
252011The Patent Asset Index - A new approach to benchmark patent portfolios. (2011). Ernst, Holger ; Omland, Nils . In: World Patent Information. RePEc:eee:worpat:v:33:y:2011:i:1:p:34-41.

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5
262000Carbon nanotubes: bibliometric analysis of patents. (2000). Pangannaya, N. B. ; Gupta, V. K.. In: World Patent Information. RePEc:eee:worpat:v:22:y:2000:i:3:p:185-189.

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5
272004Patents and patent information in 1979 and 2004: a perspective from India. (2004). Ganguli, Prabuddha . In: World Patent Information. RePEc:eee:worpat:v:26:y:2004:i:1:p:61-62.

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5
281995Provision of patent information: a national patent office perspective. (1995). Blackman, Michael . In: World Patent Information. RePEc:eee:worpat:v:17:y:1995:i:2:p:115-123.

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4
292009Black sheep in the patent family. (2009). Simmons, Edlyn S.. In: World Patent Information. RePEc:eee:worpat:v:31:y:2009:i:1:p:11-18.

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4
302010Properties of the USPTO patent citation network: 1963-2002. (2010). Gress, Bernard . In: World Patent Information. RePEc:eee:worpat:v:32:y:2010:i:1:p:3-21.

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4
312007Extending legal protection strategies to the service innovations area: Review and analysis. (2007). Bader, Martin A.. In: World Patent Information. RePEc:eee:worpat:v:29:y:2007:i:2:p:122-135.

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4
322010Patinformatics as a business process: A guideline through patent research tasks and tools. (2010). Bergmann, Isumo ; Skrzipale, Svenja ; Bobe, Sebastian ; Moehrle, Martin G. ; Walter, Lothar . In: World Patent Information. RePEc:eee:worpat:v:32:y:2010:i:4:p:291-299.

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4
332009Patent analyses in the changed legal regime of the US Patent Law since 2001. (2009). Schmoch, Ulrich . In: World Patent Information. RePEc:eee:worpat:v:31:y:2009:i:4:p:299-303.

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4
341995Trends in patent renewals at the United States patent and trademark office. (1995). Brown, William H.. In: World Patent Information. RePEc:eee:worpat:v:17:y:1995:i:4:p:225-234.

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4
352005Independent inventors and public support measures: insights from 33 case studies in Finland. (2005). Meyer, Martin. In: World Patent Information. RePEc:eee:worpat:v:27:y:2005:i:2:p:113-123.

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4
361982The office of technology assessment and forecast industry concordance as a means of identifying industry technology origins. (1982). Scherer, F. M.. In: World Patent Information. RePEc:eee:worpat:v:4:y:1982:i:1:p:12-17.

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4
372010Review of the state-of-the-art in patent information and forthcoming evolutions in intelligent patent informatics. (2010). Ciaramella, Alberto ; Corno, Fulvio ; Bonino, Dario . In: World Patent Information. RePEc:eee:worpat:v:32:y:2010:i:1:p:30-38.

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4
382011Europe should stop taxing innovation. (2011). van Pottelsberghe de la Potterie, Bruno ; van Pottelsberghe de la Potterie, Bruno, . In: World Patent Information. RePEc:eee:worpat:v:33:y:2011:i:1:p:16-22.

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4
392007A rapid analysis of Avian Influenza patents in the Esp@cenet® database - R&D strategies and country comparisons. (2007). Dou, Henri ; Bai, Ying. In: World Patent Information. RePEc:eee:worpat:v:29:y:2007:i:1:p:26-32.

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3
402011Patenting activities by developing countries: The case of Malaysia. (2011). Govindaraju, Chandran VGR ; Wong, Chan-Yuan ; Chandran Govindaraju, V. G. R., . In: World Patent Information. RePEc:eee:worpat:v:33:y:2011:i:1:p:51-57.

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3
412005Using intellectual property data to analyse Chinas growing technological capabilities. (2005). Fai, Felicia M.. In: World Patent Information. RePEc:eee:worpat:v:27:y:2005:i:1:p:49-61.

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3
422002Japanese File Index classification and F-terms. (2002). Schellner, Irene . In: World Patent Information. RePEc:eee:worpat:v:24:y:2002:i:3:p:197-201.

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3
431997Patent citation analysis: A policy analysis tool. (1997). Karki, M. M. S., . In: World Patent Information. RePEc:eee:worpat:v:19:y:1997:i:4:p:269-272.

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3
442011Foreign applications at the Japan Patent Office - An empirical analysis of selected growth factors. (2011). Caviggioli, Federico. In: World Patent Information. RePEc:eee:worpat:v:33:y:2011:i:2:p:157-167.

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3
451983Patent statistics as a measure of technological vitality. (1983). Aspden, H.. In: World Patent Information. RePEc:eee:worpat:v:5:y:1983:i:3:p:170-173.

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3
461990The importance of the technological activities of the worlds largest firms. (1990). Patel, Parimal ; Pavitt, Keith. In: World Patent Information. RePEc:eee:worpat:v:12:y:1990:i:2:p:89-94.

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3
472007Corporate technology out-licensing: Motives and scope. (2007). Lichtenthaler, Ulrich . In: World Patent Information. RePEc:eee:worpat:v:29:y:2007:i:2:p:117-121.

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3
482008Patent inflation in Europe. (2008). van Pottelsberghe de la Potterie, Bruno ; van Zeebroeck, Nicolas ; Guellec, D. ; van Pottelsberghe de la Potterie, B., ; Stevnsborg, N. ; Archontopoulos, E.. In: World Patent Information. RePEc:eee:worpat:v:30:y:2008:i:1:p:43-52.

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3
491983International patent data: Their utilization for the analysis of technological developments. (1983). Schedl, Hans ; Faust, Konrad . In: World Patent Information. RePEc:eee:worpat:v:5:y:1983:i:3:p:144-157.

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3
502007When is a search not a search? The EPO approach. (2007). Scott, Jeremy R. M., . In: World Patent Information. RePEc:eee:worpat:v:29:y:2007:i:2:p:108-116.

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3

50 most relevant documents in this series (papers most cited in the last two years)


#YearTitleCited
12003Patent information for strategic technology management. (2003). Ernst, Holger . In: World Patent Information. RePEc:eee:worpat:v:25:y:2003:i:3:p:233-242.

Full description at Econpapers || Download paper

23
21981Citation rates to technologically important patents. (1981). Narin, Francis ; Woolf, Patricia ; Carpenter, Mark P.. In: World Patent Information. RePEc:eee:worpat:v:3:y:1981:i:4:p:160-163.

Full description at Econpapers || Download paper

16
32008Visualizing patent statistics by means of social network analysis tools. (2008). Sternitzke, Christian ; Bartkowski, Adam ; Schramm, Reinhard . In: World Patent Information. RePEc:eee:worpat:v:30:y:2008:i:2:p:115-131.

Full description at Econpapers || Download paper

10
42006Patent network analysis of inter-industrial knowledge flows: The case of Korea between traditional and emerging industries. (2006). Park, Yongtae ; Han, Yoo-Jin . In: World Patent Information. RePEc:eee:worpat:v:28:y:2006:i:3:p:235-247.

Full description at Econpapers || Download paper

9
52006Patent portfolio analysis as a useful tool for identifying R&D and business opportunities--an empirical application in the nutrition and health industry. (2006). Fabry, Bernd ; Koster, Martin ; Langholz, Jens ; Ernst, Holger . In: World Patent Information. RePEc:eee:worpat:v:28:y:2006:i:3:p:215-225.

Full description at Econpapers || Download paper

8
62011Patent data as indicators of wind power technology development. (2011). Giannoccaro, Dimitris ; Ackermann, Thomas ; Bengtsson, Rune ; Dubaric, Ervin . In: World Patent Information. RePEc:eee:worpat:v:33:y:2011:i:2:p:144-149.

Full description at Econpapers || Download paper

7
72003Text mining applied to patent mapping: a practical business case. (2003). Pedrazzi, Giorgio ; Turra, Roberta ; Fattori, Michele . In: World Patent Information. RePEc:eee:worpat:v:25:y:2003:i:4:p:335-342.

Full description at Econpapers || Download paper

6
82002The electric vehicle:: Patent data as indicators of technological development. (2002). Pilkington, Alan ; Dyerson, Romano ; Tissier, Omid . In: World Patent Information. RePEc:eee:worpat:v:24:y:2002:i:1:p:5-12.

Full description at Econpapers || Download paper

5
92011Using patents and publications to assess R&D efficiency in the states of the USA. (2011). Sharma, Seema ; Thomas, V. J. ; Jain, Sudhir K.. In: World Patent Information. RePEc:eee:worpat:v:33:y:2011:i:1:p:4-10.

Full description at Econpapers || Download paper

5
102008Assessment of technological capability in science industry linkage in China by patent database. (2008). Motohashi, Kazuyuki. In: World Patent Information. RePEc:eee:worpat:v:30:y:2008:i:3:p:225-232.

Full description at Econpapers || Download paper

4
112009A patent based evaluation of technological innovation capability in eight economic regions in PR China. (2009). Meyer, Martin ; Shu, Fang ; Yang, Zhiping ; Chen, Yunwei ; Bhattacharya, Sujit . In: World Patent Information. RePEc:eee:worpat:v:31:y:2009:i:2:p:104-110.

Full description at Econpapers || Download paper

4
122003Determinants of foreign patents in China. (2003). Sun, Yifei. In: World Patent Information. RePEc:eee:worpat:v:25:y:2003:i:1:p:27-37.

Full description at Econpapers || Download paper

4
131983Patent trends as a technological forecasting tool. (1983). Campbell, Richard S.. In: World Patent Information. RePEc:eee:worpat:v:5:y:1983:i:3:p:137-143.

Full description at Econpapers || Download paper

3
142011The Patent Asset Index - A new approach to benchmark patent portfolios. (2011). Ernst, Holger ; Omland, Nils . In: World Patent Information. RePEc:eee:worpat:v:33:y:2011:i:1:p:34-41.

Full description at Econpapers || Download paper

3
151983Validation study: Patent citations as indicators of science and foreign dependence. (1983). Narin, Francis ; Carpenter, Mark P.. In: World Patent Information. RePEc:eee:worpat:v:5:y:1983:i:3:p:180-185.

Full description at Econpapers || Download paper

3
161990The international patent classification as a search tool. (1990). Vijvers, W. G.. In: World Patent Information. RePEc:eee:worpat:v:12:y:1990:i:1:p:26-30.

Full description at Econpapers || Download paper

2
172006Automatic classification of patent documents for TRIZ users. (2006). He, Cong ; Shen, Lixiang ; Loh, Han Tong. In: World Patent Information. RePEc:eee:worpat:v:28:y:2006:i:1:p:6-13.

Full description at Econpapers || Download paper

2
182007Extending legal protection strategies to the service innovations area: Review and analysis. (2007). Bader, Martin A.. In: World Patent Information. RePEc:eee:worpat:v:29:y:2007:i:2:p:122-135.

Full description at Econpapers || Download paper

2
192002The patent activities of Korea and Taiwan: a comparative case study of patent statistics. (2002). Imm, Keun-Young ; Jung, Sungchang . In: World Patent Information. RePEc:eee:worpat:v:24:y:2002:i:4:p:303-311.

Full description at Econpapers || Download paper

2
202006Mapping nanotechnology patents: The EPO approach. (2006). Scheu, M. ; Verbandt, Y. ; Forster, W. ; Veefkind, V. ; Absalom, R. ; Galan, Molina E.. In: World Patent Information. RePEc:eee:worpat:v:28:y:2006:i:3:p:204-211.

Full description at Econpapers || Download paper

2
212009Changing landscape in biotechnology patenting. (2009). Singh, Angad ; Hallihosur, Sharanabasava ; Rangan, Latha . In: World Patent Information. RePEc:eee:worpat:v:31:y:2009:i:3:p:219-225.

Full description at Econpapers || Download paper

2
222004Patents and patent information in 1979 and 2004: a perspective from India. (2004). Ganguli, Prabuddha . In: World Patent Information. RePEc:eee:worpat:v:26:y:2004:i:1:p:61-62.

Full description at Econpapers || Download paper

2
232010Quality assurance in the EPO Patent Information Resource. (2010). Versloot-Spoelstra, Fenny ; van Dinter, Trudy ; Bosma, Rex ; Albrecht, Miguel A. ; van Ginkel, Koen ; Ernst, Jean-Luc . In: World Patent Information. RePEc:eee:worpat:v:32:y:2010:i:4:p:279-286.

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2
242009Numbers and sizes of applicants at the European Patent Office. (2009). Hingley, Peter ; Bas, Serpil . In: World Patent Information. RePEc:eee:worpat:v:31:y:2009:i:4:p:285-298.

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2

Citing documents used to compute impact factor 0:


YearTitle

Recent citations (cites in year: CiY)


Warning!! This is still an experimental service. The results of this service should be interpreted with care, especially in research assessment exercises. The processing of documents is automatic. There still are errors and omissions in the identification of references. We are working to improve the software to increase the accuracy of the results.

Source data used to compute the impact factor of RePEc series.

CitEc is a RePEc service, providing citation data for Economics since 2001. Sponsored by INOMICS. Last updated December, 2th 2018. Contact: CitEc Team