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For the Inventor, By the Inventor

West Chester, PA, United States of America

Mei, Inc.


USPTO Granted Patents = 79

% Expired Patents = 43.0


Trademarks = 24

Forward Citations = 312

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68 inventors (with patents filed for the assignee):

goldMedal Michael David Nunn (12 out of 27 patents)

silverMedal Christian Voser (11 out of 20 patents)

bronzeMedal Robert Clauser (9 out of 24 patents)

4.  Evan John Cost (9 out of 18 patents)

5.  Roberto Polidoro (8 out of 23 patents)

6.  Gaston Daniel Baudat (7 out of 13 patents)

7.  Kenneth B Wood (7 out of 8 patents)

8.  André Gerlier (7 out of 7 patents)

9.  David Charles Deaville (6 out of 23 patents)

10.  Fatiha Anouar (5 out of 10 patents)

11.  Scott Tice (5 out of 6 patents)

12.  Jeffrey T Thawley (5 out of 12 patents)

13.  Neil Young (4 out of 7 patents)

14.  John D Snider (4 out of 12 patents)

15.  David Michael Furneaux (4 out of 13 patents)


Core Competencies:
Currency Validation
Document Processing
Metal Etch System
Wafer Dryer
Optical Sensor
Coin Handling
Security Gate
Vending Machines
Currency Discrimination
Banknote Handling
Modular Security Gate
Document Storage

79 patents:

1. 10056271 - Metal etch system (2018-08-21),
2. 9829249 - Wafer dryer apparatus and method (2017-11-28),
3. 9562291 - Metal etch system (2017-02-07),
4. 9553005 - Metal liftoff tools and methods (2017-01-24),
5. 9279616 - Liquid coalescence and vacuum chamber dryer system and method (2016-03-08),
6. 9214501 - In-cell OLED touch display panel structure (2015-12-15),
7. 9070631 - Metal liftoff tools and methods (2015-06-30),
8. 9033338 - Stacking mechanisms and cassettes for documents (2015-05-19),
9. 8949643 - Document validator with power management (2015-02-03),
10. 8932118 - Batch re-load of coin recycler (2015-01-13),
11. 8875994 - Payment interface (2014-11-04),
12. 8864126 - Document storage assembly (2014-10-21),
13. 8851373 - Tracking information in a note handling facility (2014-10-07),
14. 8836926 - Optical detector arrangement for document acceptor (2014-09-16),
15. 8820507 - Currency discrimination and evaluation (2014-09-02),
MEI, INC. is a leading provider of innovative solutions in the manufacturing industry. With over 25 years of experience, we offer a wide range of products and services including precision machining, engineering design, and prototype development. Our team of skilled professionals is dedicated to delivering high-quality results and exceeding customer expectations. Visit our website to learn more about our capabilities and how we can assist you in your manufacturing needs.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

Mei, Inc.
79 Patents

#2 in West Chester, PA

#178 in Pennsylvania

#4,687 in US

#9,562 in the World

West Chester, PA (US)
West Chester, PA, United States of America

Mei, Inc.

Forward Citations = 312

68 inventors:

goldMedal Michael David Nunn (12 out of 27 patents)

silverMedal Christian Voser (11 out of 20 patents)

bronzeMedal Robert Clauser (9 out of 24 patents)

4.  Evan John Cost (9 out of 18 patents)

5.  Roberto Polidoro (8 out of 23 patents)

Please report any incorrect information to [email protected]
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