Elfed I. Williams

Person

Pontarddulais, GB

People

Patents Grantslast 30 patents

Information Patent Grant
Method of making a filter cartridge using a thermoforming step
- Patent number 7,497,217
- Issue date Mar 3, 2009
- 3M Innovative Properties Company
- Andrew S. Viner
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Method of making a filtering face mask that has an exhalation valve...
- Patent number 7,069,931
- Issue date Jul 4, 2006
- 3M Innovative Properties Company
- Desmond T. Curran
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Manner of attaching component elements to filtration material such...
- Patent number 7,007,695
- Issue date Mar 7, 2006
- 3M Innovative Properties Company
- Desmond T. Curran
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Manner of attaching component elements to filtration material such...
- Patent number 6,959,709
- Issue date Nov 1, 2005
- 3M Innovative Properties Company
- Desmond T. Curran
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Filter element that has a thermo-formed housing around filter material
- Patent number 6,874,499
- Issue date Apr 5, 2005
- 3M Innovative Properties Company
- Andrew S. Viner
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Manner of attaching component elements to filtration material such...
- Patent number 6,604,524
- Issue date Aug 12, 2003
- 3M Innovative Properties Company
- Desmond T. Curran
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Protective garments incorporating bands of welded or adhesively-bon...
- Patent number 6,286,144
- Issue date Sep 11, 2001
- 3M Innovative Properties Company
- Christopher P. Henderson
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Multi-part headband and respirator mask assembly and process for ma...
- Patent number 6,148,817
- Issue date Nov 21, 2000
- 3M Innovative Properties Company
- John W. Bryant
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Respiratory masks having valves and other components attached to th...
- Patent number 6,125,849
- Issue date Oct 3, 2000
- 3M Innovative Properties Company
- Elfed I. Williams
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Elastomeric composite headband
- Patent number 6,070,579
- Issue date Jun 6, 2000
- 3M Innovative Properties Company
- John W. Bryant
- A41 - WEARING APPAREL
Information Patent Grant
Multi-part headband and respirator mask assembly and process for ma...
- Patent number 5,724,677
- Issue date Mar 10, 1998
- Minnesota Mining and Manufacturing Company
- John W. Bryant
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

Information Patent Application
Method of making a filtering face mask that has an exhalation valve...
- Publication number 20050252839
- Publication date Nov 17, 2005
- 3M Innovative Properties Company
- Desmond T. Curran
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Method of making a filter cartridge that uses thermoforming step
- Publication number 20050161045
- Publication date Jul 28, 2005
- 3M Innovative Properties Company
- Andrew S. Viner
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Filter element that has a thermo-formed housing around filter material
- Publication number 20040055604
- Publication date Mar 25, 2004
- Andrew S. Viner
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Manner of attaching component elements to filtration material such...
- Publication number 20040035426
- Publication date Feb 26, 2004
- Desmond T. Curran
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Manner of attaching component elements to filtration material such...
- Publication number 20010029952
- Publication date Oct 18, 2001
- Desmond T. Curran
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Elfed I. Williams

Person

Patents Grantslast 30 patents

Method of making a filter cartridge using a thermoforming step

Method of making a filtering face mask that has an exhalation valve...

Manner of attaching component elements to filtration material such...

Manner of attaching component elements to filtration material such...

Filter element that has a thermo-formed housing around filter material

Manner of attaching component elements to filtration material such...

Protective garments incorporating bands of welded or adhesively-bon...

Multi-part headband and respirator mask assembly and process for ma...

Respiratory masks having valves and other components attached to th...

Elastomeric composite headband

Multi-part headband and respirator mask assembly and process for ma...

Patents Applicationslast 30 patents

Method of making a filtering face mask that has an exhalation valve...

Method of making a filter cartridge that uses thermoforming step

Filter element that has a thermo-formed housing around filter material

Manner of attaching component elements to filtration material such...

Manner of attaching component elements to filtration material such...