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For the Inventor, By the Inventor

Vancouver, Canada

Bdf IP Holdings Ltd.


USPTO Granted Patents = 12

% Expired Patents = 16.7



Forward Citations = 27

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37 inventors (with patents filed for the assignee):

goldMedal Siyu Ye (4 out of 14 patents)

silverMedal Shanna Denine Knights (3 out of 16 patents)

bronzeMedal Herwig Haas (2 out of 14 patents)

4.  Kyoung J Bai (2 out of 7 patents)

5.  Sean M MacKinnon (2 out of 5 patents)

6.  Alexander Douglas Mossman (1 out of 7 patents)

7.  Alan Young (1 out of 4 patents)

8.  Scott McDermid (1 out of 8 patents)

9.  Nengyou Jia (1 out of 1 patent)

10.  David S De Haan (1 out of 2 patents)

11.  Christopher J Richards (1 out of 3 patents)

12.  Michael P Sexsmith (1 out of 7 patents)

13.  Craig R Louie (1 out of 2 patents)

14.  Cara N Startek (1 out of 2 patents)

15.  Ronald Mah (1 out of 1 patent)


12 patents:

1. 10205173 - Cathode design for electrochemical cells (2019-02-12),
2. 9099704 - Methods of operating fuel cell stacks and systems (2015-08-04),
3. 8168025 - Methods of making components for electrochemical cells (2012-05-01),
4. 8053122 - System and method of starting a fuel cell system (2011-11-08),
5. 7964315 - Shutdown methods and designs for fuel cell stacks (2011-06-21),
6. 7955739 - Shutdown methods and designs for fuel cell stacks (2011-06-07),
7. 7784770 - Method for humidifying a reactant stream for a fuel cell (2010-08-31),
8. 7608358 - Fuel cell anode structure for voltage reversal tolerance (2009-10-27),
9. 7601759 - Water insoluble additive for improving conductivity of an ion exchange membrane (2009-10-13),
10. 7537857 - Reduced degradation of ion-exchange membranes in electrochemical fuel cells (2009-05-26),
11. 7482085 - Apparatus for improving the cold starting capability of an electrochemical fuel cell (2009-01-27),
12. 7429280 - Method for producing a membrane for a fuel cell (2008-09-30),
Company Overview
Bdf IP Holdings Ltd. is a Vancouver-based company specializing in the development and commercialization of innovative intellectual property solutions. The organization focuses on enhancing technology across various sectors, including telecommunications and software, by leveraging its extensive portfolio of intellectual assets. Bdf IP Holdings is committed to advancing research and fostering partnerships that drive technological progress, positioning itself as a key player in the intellectual property landscape.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

12 Patents

#77 in Vancouver

#1,265 in Canada

#48,163 in the World

Vancouver, CA
Vancouver, Canada

Bdf IP Holdings Ltd.

Forward Citations = 27

37 inventors:

goldMedal Siyu Ye (4 out of 14 patents)

silverMedal Shanna Denine Knights (3 out of 16 patents)

bronzeMedal Herwig Haas (2 out of 14 patents)

4.  Kyoung J Bai (2 out of 7 patents)

5.  Sean M MacKinnon (2 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Bdf IP Holdings Ltd.. Retrieved from https://idiyas.com/company/bdf-ip-holdings

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]
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