Inventor

GRAMMES HARTWIG

DE9 patents

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

BAYER AG

7 patents

US5362834ANov 8, 1994

Gel compounds, their production and use

BAYER AG129 citations95

US6759363B2Jul 6, 2004

Activators for the production of polyurethane foams

BAYER AG10 citations73

US4546121AOct 8, 1985

Use of polyhydroxyalkyl monoureas for polyurethane foams, dispersions of the polyhydroxyalkyl monoureas in polyols and new tris-hydroxyalkyl monoureas

BAYER AG9 citations73

US5350781ASep 27, 1994

Process for the production of polyurethane foams

BAYER AG10 citations71

US5445879AAug 29, 1995

Process for the preparation of composite bodies

BAYER AG2 citations62

US5342856AAug 30, 1994

Process for producing integral skin molded foams

BAYER AG5 citations62

US4540626ASep 10, 1985

Polyhydroxyalkyl polycarbonamides for the production of flame-resistant polyurethane rigid foams and integral foams

BAYER AG1 citations51

BAYER MATERIALSCIENCE AG

2 patents

US7273656B2Sep 25, 2007

Plastic composite elements and a process for the production thereof

BAYER MATERIALSCIENCE AG2 citations60

US7989516B2Aug 2, 2011

Plastic composite elements and a process for the production thereof

BAYER MATERIALSCIENCE AG1 citations45