Inventor

DARWIN DAVID C

US5 patents

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

GRACE W R & CO

3 patents

US5633298AMay 27, 1997

Cement admixture product having improved rheological properties and process of forming same

GRACE W R & CO157 citations98

US5393343AFeb 28, 1995

Cement and cement composition having improved rheological properties

GRACE W R & CO230 citations98

US5583183ADec 10, 1996

Cement and cement composition having improved rheological properties

GRACE W R & CO80 citations95

HYCRETE INC

1 patent

US7670415B1Mar 2, 2010

Vapor barrier for porous structures and system

HYCRETE INC14 citations79

DARWIN DAVID C

1 patent

US9125403B2Sep 8, 2015

Waterproofing and preservative compositions for organic material

DARWIN DAVID C0 citations42