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Spencerport, NY, United States of America

David A Martinchek

USPTO Granted Patents = 15 (Patent Applications = 1)

Average Co-Inventor Count = 2.1

ph-index = 4

Forward Citations = 52(Granted Patents)

Location History:

Pontiac, MI (US) (2019)
Spencerport, NY (US) (2012 - 2020)

Company Filing History:

15 out of 31,002

Gm Global Technolgoy Operations, Inc.

1 out of 21,893

Honda Motor Co., Ltd.

where one patent can have more than one assignee

Years Active: 2012-2020

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15 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10637091 - Fuel cell stack and assembly method of same (2020-04-28),

2. 10396370 - Passive tortuous path drain (2019-08-27),

3. 10297802 - Fuel cell stack sealing methods, apparatus, and systems (2019-05-21),

4. 10270120 - Fuel cell stack assembly-compression system (2019-04-23),

5. 9997800 - Fuel cell stack and assembly method of same (2018-06-12),

6. 9742014 - Method for forming channels on diffusion media for a membrane humidifier (2017-08-22),

7. 9728790 - Fuel cell stack bus bar assembly systems and methods (2017-08-08),

8. 9634340 - Plate-style water vapor transfer unit with integral headers (2017-04-25),

9. 9627705 - Fuel cell stack assembly—datum design for fuel cell stacking and collision protection (2017-04-18),

10. 9590263 - Fuel cell stack assembly—datum design for fuel cell stacking and collision protection (2017-03-07),

11. 9225033 - Fuel cell stack compression system having integrated vehicle mounts (2015-12-29),

12. 9203097 - Discretely supported wet side plates (2015-12-01),

13. 9048468 - Method for forming channels on diffusion media for a membrane humidifier (2015-06-02),

14. 8580016 - Adjustable air flow bypass in a water vapor transfer assembly to reduce beginning of life water transfer variation (2013-11-12),

15. 8317907 - Water vapor transfer assembly (2012-11-27),

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