Stephen duPont

Person

Osprey, FL, US

People

Patents Grantslast 30 patents

Information Patent Grant
Internal combustion barrel engine
- Patent number 7,509,930
- Issue date Mar 31, 2009
- Stephen duPont
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Hearing aid system with acoustical horn
- Patent number 6,160,895
- Issue date Dec 12, 2000
- Stephen Dupont
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Acoustical horn for behind-the-ear hearing aid
- Patent number D417279
- Issue date Nov 30, 1999
- Stephen Dupont
- D24 - Medical and laboratory equipment
Information Patent Grant
Forwards facing rowing apparatus with feathering of the oar blades
- Patent number 5,248,272
- Issue date Sep 28, 1993
- Stephen duPont
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Grant
Articulated hydrofoil oar
- Patent number 4,943,250
- Issue date Jul 24, 1990
- Stephen duPont
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Grant
Hydrofoil oar
- Patent number 4,867,718
- Issue date Sep 19, 1989
- Stephen duPont
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Grant
Hydrofoil oar with movable outrigger
- Patent number 4,867,719
- Issue date Sep 19, 1989
- Stephen duPont
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Grant
Forwards facing hydrofoil oar
- Patent number 4,776,821
- Issue date Oct 11, 1988
- Stephen duPont
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT

Patents Applicationslast 30 patents

Information Patent Application
Internal combustion barrel engine
- Publication number 20080271715
- Publication date Nov 6, 2008
- Stephen duPont
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES

Stephen duPont

Person

Patents Grantslast 30 patents

Internal combustion barrel engine

Hearing aid system with acoustical horn

Acoustical horn for behind-the-ear hearing aid

Forwards facing rowing apparatus with feathering of the oar blades

Articulated hydrofoil oar

Hydrofoil oar

Hydrofoil oar with movable outrigger

Forwards facing hydrofoil oar

Patents Applicationslast 30 patents

Internal combustion barrel engine