Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
DS

David A. Singer — 8 Patents

General Motors: 4 patents #3,757 of 18,328Top 25%
SPSunbeam Products: 2 patents #179 of 575Top 35%
RPRalston Purina: 1 patents #43 of 125Top 35%
Farmington, MI: #42 of 283 inventorsTop 15%
Michigan: #12,001 of 86,293 inventorsTop 15%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
David A. Singer has been granted 8 US patents while listed as an inventor at General Motors. The first was granted in 1981 and the most recent in August 2005. David A. Singer ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list David A. Singer in Farmington, MI, US.

Patents per Year

Patents granted per year, 1981 to 2005Bar chart with a peak of 2 patents in 1996.peak 21981: 1 patents19811995: 1 patents19951996: 2 patents19961997: 1 patents19972001: 1 patents20012005: 2 patents2005

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
D507924 Ice tea maker Alan Burton, Lucie Milanes, Lisa Willey 2005-08-02
D507449 Ice tea maker Alan Burton, Lucie Milanes, Lisa Willey 2005-07-19
6221423 Short-chained peptide material Myong J. Cho, Santa Lin 2001-04-24
5630571 Exhaust flow control valve Melvin D. Kipp, Mehrnam Sharif-Bakhtiar, Frank Ament 1997-05-20
5508172 Modified soy fiber material of improved sensory properties Theodore M. Wong, Santa Lin 1996-04-16 $29,063,000
5492679 Zeolite/catalyst wall-flow monolith adsorber Frank Ament 1996-02-20
5390488 Air injection control for preheated catalysts Frank Ament, David Brown 1995-02-21
4306529 Adaptive air/fuel ratio controller for internal combustion engine Alan F. Chiesa, Fayetta L. Colden, John A. Zahorchak 1981-12-22 $5,128,000