P

Inventor

WOODWARD STEPHEN M

US6 patents
⚠️ This page may combine multiple inventors who share the name “WOODWARD STEPHEN M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

PRESTONE PRODUCTS CORP

4 patents
US5571420ANov 5, 1996

Cooling system change over apparatus and process

PRESTONE PRODUCTS CORP19 citations91
US5804063ASep 8, 1998

Cooling system change-over apparatus and process

PRESTONE PRODUCTS CORP16 citations81
US5510036AApr 23, 1996

Process for treatment of aqueous solutions of polyhydric alcohols

PRESTONE PRODUCTS CORP12 citations73
US5820752AOct 13, 1998

Methods and apparatus for recycling used antifreeze/coolant

PRESTONE PRODUCTS CORP5 citations57

FIRST BRANDS CORP

2 patents
US5223144AJun 29, 1993

Process for treatment of aqueous soluions of polyhydric alcohols

FIRST BRANDS CORP31 citations92
US5422008AJun 6, 1995

Reinhibition of recycled antifreeze/coolant

FIRST BRANDS CORP13 citations73