Inventor
David A. Singer
Inventor
Farmington, MI, US
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F01Nprimary
F01NGas-flow silencers or exhaust apparatus for machines or engines in general18%
F02DControlling combustion engines18%
A23JProtein compositions for foodstuffs9%
A23LFoods, foodstuffs or non-alcoholic beverages, not otherwise provided for9%
B01DSeparation9%
C12YEnzymes9%
F16KValves9%
Y02TClimate change mitigation technologies related to transportation9%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%
PatentTitleYear
6,221,423'Short-chained peptide material'20015,630,571'Exhaust flow control valve'19975,508,172'Modified soy fiber material of improved sensory properties'19965,492,679'Zeolite/catalyst wall-flow monolith adsorber'19965,390,488'Air injection control for preheated catalysts'19954,306,529'Adaptive air/fuel ratio controller for internal combustion engine'1981Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1981–1997Patents assigned to GEN MOTORS CORP (4)· patent assignee history
1981–1997Based in Farmington, MI, US· patent location history
1996Patents assigned to RALSTON PURINA CO (1)· patent assignee history
1996–2001Based in St. Louis, MO, US· patent location history
2001Patents assigned to PROTEIN TECHNOLOGIES INT L INC (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GEN MOTORS CORP | 4 | 1981–1997 |
| PROTEIN TECHNOLOGIES INT L INC | 1 | 2001 |
| RALSTON PURINA CO | 1 | 1996 |
Locations
| Location | Patents | Span |
|---|---|---|
| Farmington, MI, US | 4 | 1981–1997 |
| St. Louis, MO, US | 2 | 1996–2001 |