Petrus J. Janssen

Follow

Person

Eindhoven, NL

People

Patents Grantslast 30 patents

Information Patent Grant
Glass optical fiber having a primary and a secondary coating
- Patent number 4,690,503
- Issue date Sep 1, 1987
- U.S. Philips Corp.
- Petrus J. Janssen
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method of and device for drawing an optical fiber from a solid pref...
- Patent number 4,673,427
- Issue date Jun 16, 1987
- U.S. Philips Corporation
- Aart A. Van Der Giessen
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Device for drawing an optical fibre
- Patent number 4,477,274
- Issue date Oct 16, 1984
- U.S. Philips Corporation
- Petrus J. Janssen
- C03 - GLASS MINERAL OR SLAG WOOL