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Tucson, AZ, United States of America

Walbro Engine Management, L.l.c.

USPTO Granted Patents = 92

EPO Patents = 2

Trademarks = 2

Forward Citations = 669

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86 inventors (with patents filed for the assignee):

George M Pattullo (16 out of 39 patents)

Ronald H Roche (13 out of 31 patents)

John C Woody (10 out of 20 patents)

4. Martin N Andersson (9 out of 31 patents)

5. Kevin L Israelson (8 out of 19 patents)

6. David L Speirs (7 out of 32 patents)

7. Roger N Smith (7 out of 12 patents)

8. Matthew A Braun (6 out of 12 patents)

9. Kenneth J Cotton (6 out of 13 patents)

10. Mark S Swanson (6 out of 21 patents)

11. Michael P Burns (6 out of 11 patents)

12. Jeffrey D Hanby (5 out of 12 patents)

13. Eric G Zbytowski (5 out of 12 patents)

14. Yoshiaki Douyama (5 out of 7 patents)

15. Gary U Gliniecki (4 out of 8 patents)

92 patents: Sort by Forward Citations

1. 9279390 - Accelerator device for a carburetor (2016-03-08),

2. 9217403 - Level sensor mount (2015-12-22),

3. 9062630 - Carburetor fuel supply system (2015-06-23),

4. 9062629 - Carburetor fuel supply system (2015-06-23),

5. 9027910 - Fuel metering diaphragm with backing plate (2015-05-12),

6. 9022363 - Plugs for carburetors (2015-05-05),

7. 9022011 - Engine fuel delivery systems, apparatus and methods (2015-05-05),

8. 8939736 - Fuel pump assembly (2015-01-27),

9. 8933691 - Rotary position sensor (2015-01-13),

10. 8757121 - Supplying supplementary fuel for engine startup (2014-06-24),

11. 8622031 - System for supplementary fuel supply (2014-01-07),

12. 8453998 - Air scavenging carburetor (2013-06-04),

13. 8397702 - Control circuit for capacitor discharge ignition system (2013-03-19),

14. 8382072 - Charge forming device and solenoid valve (2013-02-26),

15. 8348244 - Carburetor valve adjustment limiter (2013-01-08),

Walbro Engine Management is a global leader in engine management and fuel systems for the outdoor power equipment, recreational, marine, and personal transportation markets. With a history dating back to 1950, Walbro has been providing innovative solutions to meet the evolving needs of its customers. The company's products are known for their high quality, reliability, and performance, making them a trusted choice for OEMs and aftermarket customers worldwide.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 2 2025

92 Patents

#8 in Tucson, AZ

#49 in Arizona

#3,911 in US

#8,087 in the World

Tucson, AZ, United States of America

Walbro Engine Management, L.l.c.

Forward Citations = 669

86 inventors:

George M Pattullo (16 out of 39 patents)

Ronald H Roche (13 out of 31 patents)

John C Woody (10 out of 20 patents)

4. Martin N Andersson (9 out of 31 patents)

5. Kevin L Israelson (8 out of 19 patents)

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