Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert Halsall — 8 Patents

General Motors: 6 patents #2,630 of 18,328Top 15%
Delphi Technologies: 1 patents #2,130 of 4,124Top 55%
Toronto, CA: #984 of 9,482 inventorsTop 15%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
Robert Halsall has been granted 8 US patents while listed as an inventor at General Motors. The first was granted in 1992 and the most recent in November 2013. Robert Halsall ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Robert Halsall in Toronto, ON, CA.

Patents per Year

Patents granted per year, 1992 to 2013Bar chart with a peak of 3 patents in 2010.peak 31992: 1 patents19922003: 1 patents20032004: 1 patents20042007: 1 patents20072010: 3 patents20102013: 1 patents2013

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
8573513 Fuel system inlet check valve with flame arresting feature Vincent J. Marsala, Scott W. Jorgensen 2013-11-05 $9,219,000
7845330 Multi-pump fuel system and method William L. Villaire, David E. Winn 2010-12-07
7784342 Multi-slope variable resistance fuel sender unit Wade G. Johnson, Shane A. Isenhoff 2010-08-31
7757672 Anti-clogging fuel pump module William L. Villaire, Mitchell E. Hart 2010-07-20
7234451 Dual fuel pump configuration for saddle fuel tanks Gerard G. Betz, II, Richard H. Krentz, Vincent J. Marsala, Philip A. Yaccarino 2007-06-26 $14,662,000
6792918 Vacuum relief modular reservoir assembly 2004-09-21 $10,894,000
6508416 Coated fuel injector valve Noreen Louise Mastro, Jeffrey Mark Noll, David Rogers, Stephen J. Harris, Anita Weiner 2003-01-21 $1,842,000
5097647 Support tower for communications equipment Jeffrey A. Sopik, Leslie Rebanks, John E. Pepper, Frank D. Y. Cheng 1992-03-24