Donald E. Hoffman

Person

West Seneca, NY, US

People

Patents Grantslast 30 patents

Information Patent Grant
Air distribution housing with integrally formed internal bearing pi...
- Patent number 5,263,893
- Issue date Nov 23, 1993
- General Motors Corporation
- Donald E. Hoffman
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Unitary pipe clamp and assembly
- Patent number 5,234,185
- Issue date Aug 10, 1993
- General Motors Corporation
- Donald E. Hoffman
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Heater core retaining system
- Patent number 5,163,505
- Issue date Nov 17, 1992
- General Motors Corporation
- Donald E. Hoffman
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Method of assembly of single and multi-zone vehicle heating and a/c...
- Patent number 5,101,883
- Issue date Apr 7, 1992
- General Motors Corporation
- Jeffrey C. Kinmartin
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Motor vehicle air conditioning and heating system with bi-level mode
- Patent number 4,828,018
- Issue date May 9, 1989
- General Motors Corporation
- Donald E. Hoffman
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Actuator for air conditioning system
- Patent number 4,768,545
- Issue date Sep 6, 1988
- General Motors Corporation
- Donald E. Hoffman
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Linear motion actuator with spring centering means
- Patent number 4,711,158
- Issue date Dec 8, 1987
- General Motors Corporation
- Fariborz Kayyod
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Rotary air valve seal arrangement
- Patent number 4,683,913
- Issue date Aug 4, 1987
- General Motors Corporation
- Donald E. Hoffman
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Single inlet/outlet-tank U-shaped tube heat exchanger
- Patent number 4,549,605
- Issue date Oct 29, 1985
- General Motors Corporation
- Demetrio B. Sacca
- F28 - HEAT EXCHANGE IN GENERAL

Donald E. Hoffman

Person

Patents Grantslast 30 patents

Air distribution housing with integrally formed internal bearing pi...

Unitary pipe clamp and assembly

Heater core retaining system

Method of assembly of single and multi-zone vehicle heating and a/c...

Motor vehicle air conditioning and heating system with bi-level mode

Actuator for air conditioning system

Linear motion actuator with spring centering means

Rotary air valve seal arrangement

Single inlet/outlet-tank U-shaped tube heat exchanger