P

Inventor

CHANG VICTOR S

US7 patents
⚠️ This page may combine multiple inventors who share the name “CHANG VICTOR S”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

GRACE W R & CO

3 patents
US5362581ANov 8, 1994

Battery separator

GRACE W R & CO60 citations95
US5362582ANov 8, 1994

Battery separator

GRACE W R & CO51 citations90
US5389463AFeb 14, 1995

Battery separator

GRACE W R & CO18 citations73

DOW CHEMICAL CO

2 patents
US5612820AMar 18, 1997

Birefringent interference polarizer

DOW CHEMICAL CO414 citations98
US5486949AJan 23, 1996

Birefringent interference polarizer

DOW CHEMICAL CO544 citations98

3M INNOVATIVE PROPERTIES CO

1 patent
US6583930B1Jun 24, 2003

Birefringent interference polarization

3M INNOVATIVE PROPERTIES CO60 citations96

MINNESOTA MINING & MFG

1 patent
US5872653AFeb 16, 1999

Birefringent interference polarizer

MINNESOTA MINING & MFG54 citations96