John Haarsma

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Barrington, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Insulating material and use thereof in insulators
- Patent number 4,690,780
- Issue date Sep 1, 1987
- S&C Electric Company
- Leonard V. Chabala
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Insulating material and use thereof in insulators
- Patent number 4,622,250
- Issue date Nov 11, 1986
- S&C Electric Company
- Leonard V. Chabala
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of making an organic composite electrical insulator system
- Patent number 4,212,696
- Issue date Jul 15, 1980
- Joslyn Mfg. and Supply Co.
- George E. Lusk
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL