John R. Williams

Person

Suffolk, GB

People

Patents Grantslast 30 patents

Information Patent Grant
Etching a halide glass tube, removing the etchant, and forming an o...
- Patent number 6,223,562
- Issue date May 1, 2001
- British Telecommunications public limited company
- Daryl Szebesta
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Surface treatment of halide glass articles
- Patent number 5,618,326
- Issue date Apr 8, 1997
- British Telecommunications public limited company
- Daryl Szebesta
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method of making halide fibers including casting under a reduced pr...
- Patent number 5,401,289
- Issue date Mar 28, 1995
- British Telecommunications public limited company
- Paul W. France
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method for the preparation of halide glass articles
- Patent number 5,334,232
- Issue date Aug 2, 1994
- British Telecommunications public limited company
- Paul W. France
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method of preparing a halide optical fibre
- Patent number 4,848,997
- Issue date Jul 18, 1989
- British Telecommuncations plc
- Paul W. France
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Halide fibre with high numerical aperture
- Patent number 4,836,643
- Issue date Jun 6, 1989
- British Telecommunications Public Limited Company
- Paul W. France
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Treating glass compositions
- Patent number 4,741,752
- Issue date May 3, 1988
- British Telecommunications plc
- Paul W. France
- C03 - GLASS MINERAL OR SLAG WOOL

John R. Williams

Person

Patents Grantslast 30 patents

Etching a halide glass tube, removing the etchant, and forming an o...

Surface treatment of halide glass articles

Method of making halide fibers including casting under a reduced pr...

Method for the preparation of halide glass articles

Method of preparing a halide optical fibre

Halide fibre with high numerical aperture

Treating glass compositions