P

Inventor

KOEHLER BURKHARD

DE99 patents
⚠️ This page may combine multiple inventors who share the name “KOEHLER BURKHARD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

BAYER AG

40 patents
US5304400AApr 19, 1994

Process for coating heat resistant substrates with two component stoving compositions

BAYER AG57 citations96
US5868938AFeb 9, 1999

Chiral stationary phases for chromatographic separation of optical isomers

BAYER AG52 citations94
US6664342B1Dec 16, 2003

Polycarbonates containing aspartic acid-ester functional silicones

BAYER AG18 citations93
US5545692AAug 13, 1996

Polyesters of dimer fatty acid and dimer fatty diol and their use for the production of polyester carbonates

BAYER AG23 citations93
US5786440AJul 28, 1998

Mixtures of cyclic oligocarbonates and their manufacture

BAYER AG39 citations92
US5750602AMay 12, 1998

Flameproofed polycarbonate/ABS blends resistant to stress cracking

BAYER AG42 citations92
US5693722ADec 2, 1997

Method for modifying the backbone of polymeric resins

BAYER AG34 citations92
US5654383AAug 5, 1997

Polyarylene sulfides reduced in viscosity by aftertreatment with disulfides

BAYER AG49 citations92
US7101945B2Sep 5, 2006

Phosphorus-containing polymers for optical signal transducers

BAYER AG21 citations91
US5650456AJul 22, 1997

Coumarin derivatives, a method of preparing them and their use as intermediates

BAYER AG30 citations89
US6114463ASep 5, 2000

Copolymers based on vinyl units and their use in electroluminescent devices

BAYER AG18 citations84
US5891975AApr 6, 1999

(Co)polymers based on vinyl units and use thereof in electroluminescent devices

BAYER AG13 citations74
US5849845ADec 15, 1998

Blends of aromatic polycarbonates and epoxy-functional terpolymers

BAYER AG8 citations74
US5300543AApr 5, 1994

Recyclable thermoplastics foam of high glass temperature

BAYER AG8 citations74
US5286809AFeb 15, 1994

Thermoplastic moulding compounds

BAYER AG9 citations74
US5256702AOct 26, 1993

Method of foaming thermoplastic polycarbonate

BAYER AG16 citations74
US5240988AAug 31, 1993

Mixtures of polyarylene sulfides, crosslinking agents containing nitro groups and glass fibers

BAYER AG13 citations74
US5126429AJun 30, 1992

Flexible polyamide from dimer acid and bis-secondary diamine

BAYER AG10 citations74
US5086129AFeb 4, 1992

Polyarylene sulphide modified with aryl sulfonic acid containing amino or hydroxyl group

BAYER AG8 citations74
US4952624AAug 28, 1990

Polyarylene sulfide mixtures with reduced radical formation under highly accelerated weathering

BAYER AG10 citations74
US5635560AJun 3, 1997

Mixtures of polycarbonate, phenolically hydroxyfunctional branched dimeric fatty acid polyesters and optionally graft polymer

BAYER AG12 citations73
US5093397AMar 3, 1992

Mixtures of polyarylene sulphides, nitroarylketo compounds, electron rich aromatic compounds, glass fibres and optionally other fillers

BAYER AG14 citations73
US4996256AFeb 26, 1991

Free-flowing polyarylene sulfides crystallizing with delay

BAYER AG6 citations73
US5158985AOct 27, 1992

Polycarbonate foam articles

BAYER AG12 citations72
US5308558AMay 3, 1994

Process for foaming thermoplastic polycarbonates

BAYER AG8 citations71
US6485836B2Nov 26, 2002

Composite material comprising polyurethane and at least one thermoplastic plastics material, a process for the production thereof and the use thereof in motor vehicles

BAYER AG11 citations69
US7134466B2Nov 14, 2006

Crosslinked rubber particles modified by amino(meth)acrylate groups

BAYER AG2 citations63
US6962953B2Nov 8, 2005

Aqueous secondary dispersions

BAYER AG6 citations63
US5929197AJul 27, 1999

Acylsuccinic acid polyesters, a process for their preparation and their use in thermosetting plastics and coatings

BAYER AG6 citations63
US5852098ADec 22, 1998

short glass-fibre reinorced polycarbonates

BAYER AG6 citations63
US5824741AOct 20, 1998

Impact-resistant thermoplastic moulding compositions

BAYER AG5 citations63
US5747586AMay 5, 1998

High-impact molding compounds based on polyisobutylene-containing polycarbonate

BAYER AG5 citations63
US5717027AFeb 10, 1998

Block copolycarbonates with polyisobutylene-α-haloketocarboxylic acid blocks

BAYER AG3 citations63
US5698622ADec 16, 1997

Stabilisation of ABS graft polymers using dithiodipropionic acid

BAYER AG5 citations63
US5656684AAug 12, 1997

Silanes containing oxalamide functional groups and their use as plastics additives

BAYER AG6 citations63
US5583174ADec 10, 1996

Mixtures of specific dihydroxydiphenylcycloalkane polycarbonates and mineral oil

BAYER AG3 citations63
US5484857AJan 16, 1996

Single-stage process for the preparation of polyisobutylene carboxylic acids

BAYER AG3 citations63
US5407966AApr 18, 1995

Recyclable thermoplastic foam with a high glass transition temperature II

BAYER AG6 citations63
US5391641AFeb 21, 1995

Segmented N-alkyl polyurethane amides

BAYER AG3 citations63
US5250742AOct 5, 1993

Process for the production of propargyl ethers and new propargyl ethers

BAYER AG4 citations63

BAYER MATERIALSCIENCE AG

2 patents

SUNYX SURFACE NANOTECHNOLOGIES

2 patents

BAYER TECHNOLOGY SERVICES GMBH

2 patents

QIAGEN GMBH

1 patent

(unassigned)

1 patent

COVESTRO DEUTSCHLAND AG

1 patent

HEINZ HANS DETLEF

1 patent

Showing the top 50 of 99 patents by PatentIndex Score.