For the Inventor, By the Inventor

Enter assignee name

Leiden, Netherlands

Rijksuniversiteit Te Leiden

Calculating rank

USPTO Granted Patents = 14

% Expired Patents = 21.4

Forward Citations = 115

Loading Chart...

Loading Chart...

29 inventors (with patents filed for the assignee):

Donald F Hunt (4 out of 32 patents)

Victor H Engelhard (4 out of 14 patents)

Els A J M Goulmy (4 out of 4 patents)

4. Leo Sjoerd Melchers (3 out of 10 patents)

5. Bernardus Johannes Cornelissen (3 out of 9 patents)

6. Hubertus J Linthorst (3 out of 3 patents)

7. John Ferdinand Bol (3 out of 4 patents)

8. Marianne Beatrix Sela-Buurlage (3 out of 7 patents)

9. Garrit-Jan Boudewijn Van Ommen (2 out of 19 patents)

10. Anne Petrij-Bos (2 out of 2 patents)

11. Egbert Bakker (2 out of 2 patents)

12. Peter Devilee (2 out of 2 patents)

13. Caroline Sarah Brown (2 out of 3 patents)

14. Charles Peter Woloshuk (2 out of 4 patents)

15. Alexandra Aleida Vloemans (2 out of 2 patents)

14 patents: Sort by Forward Citations

1. 7507800 - Diagnostic test kit for determining a predisposition for breast and ovarian cancer, materials and methods for such determination (2009-03-24),

2. 7205119 - HA-1 antigen (2007-04-17),

3. 7022526 - Reducing branching and enhancing fragmentation in culturing filamentous microorganisms (2006-04-04),

4. 7008922 - H-Y antigen (2006-03-07),

5. 6878375 - HA-1 antigen (2005-04-12),

6. 6733966 - Diagnostic test kit for determining a predisposition for breast and ovarian cancer, materials and methods for such determination (2004-05-11),

7. 6521598 - H-Y antigen (2003-02-18),

8. 6379885 - Human parvovirus B19 proteins and virus-like particles, their production and their use in diagnostic assays and vaccines (2002-04-30),

9. 6287815 - Human parvovirus B19 proteins and virus-like particles, their production and their use in diagnostic assays and vaccines (2001-09-11),

10. 6087560 - Transgenic fungal resistant plants expressing chitinase and glucanase, (2000-07-11),

11. 6080590 - On-line coupling biochemical detection to continuous flow separation (2000-06-27),

12. 5993808 - Chitinase, DNA coding therefor and plants containing same (1999-11-30),

13. 5885968 - Triantennary cluster glycosides, their preparation and use (1999-03-23),

14. 5670706 - Fungal resistant plants, process for obtaining fungal resistant plants (1997-09-23),

Company Overview

Rijksuniversiteit Te Leiden, located in Leiden, Netherlands, is a prominent research university renowned for its commitment to academic excellence and innovation. The institution specializes in a diverse range of disciplines, including humanities, social sciences, law, and natural sciences, fostering interdisciplinary collaboration. With a strong emphasis on research, it contributes significantly to advancements in various fields, making it a key player in the global academic landscape.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Nov 3 2026

14 Patents

#16 in Leiden

#482 in Netherlands

#42,333 in the World

Leiden, Netherlands

Rijksuniversiteit Te Leiden

Forward Citations = 115

29 inventors:

Donald F Hunt (4 out of 32 patents)

Victor H Engelhard (4 out of 14 patents)

Els A J M Goulmy (4 out of 4 patents)

4. Leo Sjoerd Melchers (3 out of 10 patents)

5. Bernardus Johannes Cornelissen (3 out of 9 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Rijksuniversiteit Te Leiden. Retrieved from https://idiyas.com/company/rijksuniversiteit-te-leiden

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

Loading…