For the Inventor, By the Inventor

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Buffalo, NY, United States of America

Gemcor Engineering Corp.

USPTO Granted Patents = 39

Forward Citations = 688

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30 inventors (with patents filed for the assignee):

Bradley M Roberts (11 out of 14 patents)

Jeffrey P Weaver (8 out of 8 patents)

Mark J Andrews (8 out of 36 patents)

4. David Michalewski (8 out of 8 patents)

5. Thomas H Speller, Sr (7 out of 8 patents)

6. Robert J Kellner (6 out of 14 patents)

7. John W Davern (6 out of 8 patents)

8. Joseph A Dionne (5 out of 5 patents)

9. Ernest K Krell (4 out of 4 patents)

10. John W Zienkiewicz (4 out of 4 patents)

11. Mark F Cassidy, Jr (3 out of 4 patents)

12. James L Birke (3 out of 4 patents)

13. Thomas H Rummell (3 out of 3 patents)

14. Mark J Catania (3 out of 3 patents)

15. James J Birke (3 out of 3 patents)

39 patents: Sort by Forward Citations

1. 5778505 - Apparatus for fastening a semi-cylindrical workpiece (1998-07-14),

2. 5687463 - Apparatus for positioning of tooling efficiently (1997-11-18),

3. 5661892 - Method for positioning tooling (1997-09-02),

4. 5653005 - Programmable fixture and assembly cell (1997-08-05),

5. 5647111 - Automatic sealant application apparatus and method (1997-07-15),

6. 5621970 - Method for positioning a wing panel for riveting (1997-04-22),

7. 5615474 - Automatic fastening machine with statistical process control (1997-04-01),

8. 5613395 - Coldworking tool automation (1997-03-25),

9. 5611130 - Multi-position rotary head apparatus (1997-03-18),

10. 5604974 - Apparatus for positioning a wing panel for riveting (1997-02-25),

11. 5575166 - High energy impact riveting apparatus and method (1996-11-19),

12. 5555616 - Method and apparatus for positioning of tooling efficiently (1996-09-17),

13. 5535498 - Hole probe method (1996-07-16),

14. 5477597 - Apparatus for positioning tooling (1995-12-26),

15. 5471865 - High energy impact riveting apparatus and method (1995-12-05),

Gemcor Engineering Corp. is a leading engineering company that specializes in providing cutting-edge solutions for the aerospace industry. With a strong focus on precision manufacturing and automation, Gemcor delivers innovative systems for drilling, fastening, and riveting applications. Their state-of-the-art technology and expertise enable the production of high-quality aerospace components meeting the stringent requirements of leading international manufacturers. Gemcor's commitment to excellence, reliability, and customer satisfaction has earned them a reputation as a trusted partner in the aerospace engineering field.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 23 2025

39 Patents

#10 in Buffalo, NY

#493 in New York

#8,536 in US

#16,933 in the World

Buffalo, NY, United States of America

Gemcor Engineering Corp.

Forward Citations = 688

30 inventors:

Bradley M Roberts (11 out of 14 patents)

Jeffrey P Weaver (8 out of 8 patents)

Mark J Andrews (8 out of 36 patents)

4. David Michalewski (8 out of 8 patents)

5. Thomas H Speller, Sr (7 out of 8 patents)

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