William E. Portz

Follow

Person

North Madison, OH, US

People

Patents Grantslast 30 patents

Information Patent Grant
Lawn rake
- Patent number 4,573,311
- Issue date Mar 4, 1986
- True Temper Corporation
- Neal J. Ipema
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Pendulum type hoe
- Patent number 4,093,031
- Issue date Jun 6, 1978
- True Temper Corporation
- William E. Portz
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Game racket string suspension
- Patent number 4,005,862
- Issue date Feb 1, 1977
- True Temper Corporation
- William E. Portz
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Yoke for game racket
- Patent number 3,981,502
- Issue date Sep 21, 1976
- True Temper Corporation
- William E. Portz
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Handgrip for game racket
- Patent number 3,948,519
- Issue date Apr 6, 1976
- True Temper Corporation
- William E. Portz
- A63 - SPORTS GAMES AMUSEMENTS