For the Inventor, By the Inventor

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Ann Arbor, MN, United States of America

G. T. Products, Inc.

USPTO Granted Patents = 27

Forward Citations = 822

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11 inventors (with patents filed for the assignee):

Robert Philip Benjey (17 out of 70 patents)

Rudolph Bergsma (16 out of 24 patents)

Lindsey E Waldorf (3 out of 11 patents)

4. Vaughn Kevin Mills (2 out of 63 patents)

5. Paul Douglas Walkowski (1 out of 13 patents)

6. Duane M Schliebe (1 out of 1 patent)

7. Pete Belanger (1 out of 1 patent)

8. Matthew Villemure (1 out of 1 patent)

9. Bryce Schwager (1 out of 1 patent)

10. Gary H Leadford (1 out of 1 patent)

11. Joseph B Newton (1 out of 1 patent)

27 patents: Sort by Forward Citations

1. 6206057 - Two-stage ORVR control valve (2001-03-27),

2. 6062276 - Two-stage ORVR control valve (2000-05-16),

3. 5983958 - Onboard vapor recovery system with two stage shutoff valve (1999-11-16),

4. 5960816 - Adjustable length vent valve system for fuel tanks (1999-10-05),

5. 5954091 - Retaining structure for a fuel tank mounted valve body (1999-09-21),

6. 5954082 - Apparatus and method for calibrating float valve (1999-09-21),

7. 5950655 - Mechanical seal ORVR system and control valve (1999-09-14),

8. 5860458 - Two-stage ORVR control valve (1999-01-19),

9. 5797434 - Onboard vapor recovery system with two-stage shutoff valve (1998-08-25),

10. 5755252 - Control valve with two-stage shutoff and peel away opening action (1998-05-26),

11. 5590697 - Onboard vapor recovery system with two-stage shutoff valve (1997-01-07),

12. 5524662 - Fuel tank vent system and diaphragm valve for such system (1996-06-11),

13. 5518026 - Filler neck butterfly check valve (1996-05-21),

14. 5417240 - Cap sensitive head valve for vehicle fuel system (1995-05-23),

15. 5404907 - Weldable vapor vent valve for fuel tanks (1995-04-11),

G. T. Products, Inc. is a leading manufacturer and distributor of high-quality industrial products. We specialize in providing innovative solutions for various industries including automotive, aerospace, electronics, and more. With a commitment to excellence and customer satisfaction, we offer a wide range of products such as adhesives, sealants, tapes, and lubricants. Our extensive product line, coupled with our experienced team, ensures that we can meet the diverse needs of our clients. Visit our website to learn more about our products and to explore how G. T. Products, Inc. can assist you in achieving your business goals.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

27 Patents

#1 in Ann Arbor, MN

#349 in Minnesota

#12,008 in US

#23,293 in the World

Ann Arbor, MN, United States of America

G. T. Products, Inc.

Forward Citations = 822

11 inventors:

Robert Philip Benjey (17 out of 70 patents)

Rudolph Bergsma (16 out of 24 patents)

Lindsey E Waldorf (3 out of 11 patents)

4. Vaughn Kevin Mills (2 out of 63 patents)

5. Paul Douglas Walkowski (1 out of 13 patents)

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