Mark J. Hoffenberg

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Laguna Niguel, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Load control for exercise device
- Patent number 4,976,424
- Issue date Dec 11, 1990
- Schwinn Bicycle Company
- Bruce A. Sargeant
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Bicycle support and load mechanism
- Patent number 4,955,600
- Issue date Sep 11, 1990
- Schwinn Bicycle Company
- Mark J. Hoffenberg
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Load mechanism for exercise devices
- Patent number 4,951,937
- Issue date Aug 28, 1990
- Schwinn Bicycle Company
- Mark J. Hoffenberg
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Bicycle racing training apparatus
- Patent number 4,938,475
- Issue date Jul 3, 1990
- Bruce A. Sargeant
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Bicycle exercise stand
- Patent number D304963
- Issue date Dec 5, 1989
- Frontline Technology, Inc.
- Bruce A. Sargeant
- D21 - Games, toys, and sports goods
Information Patent Grant
Bicycle racing training apparatus
- Patent number 4,834,363
- Issue date May 30, 1989
- Schwinn Bicycle Company
- Bruce A. Sargeant
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Bicycle support and load mechanism
- Patent number 4,815,730
- Issue date Mar 28, 1989
- Schwinn Bicycle Company
- Mark J. Hoffenberg
- A63 - SPORTS GAMES AMUSEMENTS