Betty Z. Mei

Person

Woodbury, MN, US

People

Patents Grantslast 30 patents

Information Patent Grant
Charged microfibers, microfibrillated articles and use thereof
- Patent number 6,849,329
- Issue date Feb 1, 2005
- 3M Innovative Properties Company
- Mario A. Perez
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Charged microfibers, microfibrillated articles and use thereof
- Patent number 6,420,024
- Issue date Jul 16, 2002
- 3M Innovative Properties Company
- Mario A. Perez
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Method of removing particulate solid or liquid aerosol from a gas
- Patent number 6,261,342
- Issue date Jul 17, 2001
- 3M Innovative Properties Company
- Alan D. Rousseau
- D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
Information Patent Grant
Electret articles and filters with increased oily mist resistance
- Patent number 6,238,466
- Issue date May 29, 2001
- 3M Innovative Properties Company
- Alan D. Rousseau
- D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
Information Patent Grant
Electret filters that exhibit increased oily mist resistance
- Patent number 6,214,094
- Issue date Apr 10, 2001
- 3M Innovative Properties Company
- Alan D. Rousseau
- D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
Information Patent Grant
Method of making electret articles and filters with increased oily...
- Patent number 6,068,799
- Issue date May 30, 2000
- 3M Innovative Properties Company
- Alan D. Rousseau
- D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS

Patents Applicationslast 30 patents

Information Patent Application
Method of making an electret
- Publication number 20030054716
- Publication date Mar 20, 2003
- 3M Innovative Properties Company
- Shih-Hung Chou
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Charged microfibers, microfibrillated articles and use thereof
- Publication number 20020172816
- Publication date Nov 21, 2002
- 3M Innovative Properties Company
- Mario A. Perez
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Betty Z. Mei

Person

Patents Grantslast 30 patents

Charged microfibers, microfibrillated articles and use thereof

Charged microfibers, microfibrillated articles and use thereof

Method of removing particulate solid or liquid aerosol from a gas

Electret articles and filters with increased oily mist resistance

Electret filters that exhibit increased oily mist resistance

Method of making electret articles and filters with increased oily...

Patents Applicationslast 30 patents

Method of making an electret

Charged microfibers, microfibrillated articles and use thereof