P

Inventor

AHNE HELLMUT

DE61 patents
⚠️ This page may combine multiple inventors who share the name “AHNE HELLMUT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SIEMENS AG

49 patents
US5234793AAug 10, 1993

Method for dimensionally accurate structure transfer in bilayer technique wherein a treating step with a bulging agent is employed after development

SIEMENS AG144 citations98
US4339521AJul 13, 1982

Heat resistant positive resists containing polyoxazoles

SIEMENS AG121 citations97
US5376499ADec 27, 1994

Highly heat-resistant positive resists comprising end-capped hydroxypolyamides

SIEMENS AG61 citations96
US5250375AOct 5, 1993

Photostructuring process

SIEMENS AG66 citations96
US5173393ADec 22, 1992

Etch-resistant deep ultraviolet resist process having an aromatic treating step after development

SIEMENS AG94 citations96
US4849051AJul 18, 1989

Heat resistant positive resists and method for preparing heat-resistant relief structures

SIEMENS AG50 citations96
US4395482AJul 26, 1983

Method for the preparation of heat-resistant relief structures using positive resists

SIEMENS AG86 citations96
US5234794AAug 10, 1993

Photostructuring method

SIEMENS AG50 citations93
US4622285ANov 11, 1986

Method for manufacturing polyoxazole and polythiazole precursors

SIEMENS AG47 citations93
US5556812ASep 17, 1996

Connection and build-up technique for multichip modules

SIEMENS AG40 citations92
US5081000AJan 14, 1992

Photosensitive mixture

SIEMENS AG31 citations92
US4965134AOct 23, 1990

Method for manufacturing highly heat-resistant dielectrics

SIEMENS AG23 citations92
US4371685AFeb 1, 1983

Radiation-reactive precursor stages of highly heat-resistant polymers

SIEMENS AG33 citations92
US5973202AOct 26, 1999

Preparation of poly-o-hydroxyamides and poly o-mercaptoamides

SIEMENS AG24 citations90
US5922825AJul 13, 1999

Preparation of poly-o-hydroxyamides and poly o-mercaptoamides

SIEMENS AG18 citations84
US4329556AMay 11, 1982

N-Azidosulfonylaryl-maleinimides

SIEMENS AG25 citations82
US4311785AJan 19, 1982

Method for the preparation of highly heat-resistant relief structures and the use thereof

SIEMENS AG27 citations82
US4287294ASep 1, 1981

Method for the preparation of relief structures by phototechniques

SIEMENS AG24 citations82
US5883221AMar 16, 1999

Synthesis of polybenzoxasole and polybenzothiazole precursors

SIEMENS AG18 citations81
US4883730ANov 28, 1989

Method for manufacturing heat-stable structured layers based on expoxy resin

SIEMENS AG23 citations81
US5783654AJul 21, 1998

Preparation of poly-O-hydroxyamides and poly O-mercaptoamides

SIEMENS AG10 citations74
US5726279AMar 10, 1998

Preparation of poly-o-hydroxyamides and poly o-mercaptoamides

SIEMENS AG9 citations74
US4801681AJan 31, 1989

Method for the manufacture of polyimidazole and polyimidazo-pyrrolone precursors from tetra carboxylic acid moiety reactant

SIEMENS AG7 citations74
US4656244AApr 7, 1987

Method for the manufacture of polyimidazole and polyimidazopyrrolone precursors

SIEMENS AG11 citations74
US4654415AMar 31, 1987

Method for the preparation of polyimide and polyisoindoloquinazoline dione precursors

SIEMENS AG18 citations74
US4619500AOct 28, 1986

Method for producing orientation layers for liquid crystal displays and liquid crystal displays having orientation layers

SIEMENS AG14 citations74
US4610947ASep 9, 1986

Method and manufacturing polyimidazole and polyimidazopyrrolone relief structures

SIEMENS AG7 citations74
US4598038AJul 1, 1986

Preparation of polyimide and polyisoindoloquinazoline dione relief structures

SIEMENS AG9 citations74
US4590103AMay 20, 1986

Method for the preparation of thin polyimide film

SIEMENS AG17 citations74
US4514043AApr 30, 1985

Method for the preparation of orientation layers for liquid crystal displays and liquid crystal displays having orientation layers

SIEMENS AG7 citations74
US4397999AAug 9, 1983

Polyimidazole and polyimidazopyrrolone precursor stages and the preparation thereof

SIEMENS AG10 citations74
US4385165AMay 24, 1983

Polyimide, polyisoindoloquinazoline dione, polyoxazine dione and polyquinazoline dione precursor stages and the manufacture

SIEMENS AG17 citations74
US4366230ADec 28, 1982

Method for the preparation of highly heat-resistant relief structures and the use thereof

SIEMENS AG8 citations74
US4332883AJun 1, 1982

Method for the manufacture of highly heat-resistant relief structures

SIEMENS AG9 citations74
US4292398ASep 29, 1981

Method for the preparation of relief structures by phototechniques

SIEMENS AG7 citations74
US5703186ADec 30, 1997

Mixed polymers

SIEMENS AG5 citations73
US5384220AJan 24, 1995

Production of photolithographic structures

SIEMENS AG16 citations73
US5262283ANov 16, 1993

Method for producing a resist structure

SIEMENS AG11 citations73
US5229258AJul 20, 1993

Method for producing a resist structure

SIEMENS AG11 citations73
US5040090AAug 13, 1991

Capacitive moisture-sensor

SIEMENS AG11 citations73
US4975347ADec 4, 1990

Method for manufacturing heat-stable structured layers from photopolymers which are addition reaction products of olefinic unsaturated monoisocyanates and phenol-formaldehyde resins

SIEMENS AG15 citations73
US4828948AMay 9, 1989

Method for the production of heat-resistant structured layers

SIEMENS AG10 citations73
US4732951AMar 22, 1988

Polyether-based photopolymers

SIEMENS AG6 citations73
US5760162AJun 2, 1998

Preparation of poly-o-hydroxyamides and poly-o-mercaptoamides

SIEMENS AG9 citations71
US5275920AJan 4, 1994

Method of dry development utilizing quinone diazide and basic polymer resist with latent image intensification through treatment with silicon-organic compound in water

SIEMENS AG6 citations63
US5104773AApr 14, 1992

Preparing highly thermoresistant relief structures

SIEMENS AG4 citations63
US4398009AAug 9, 1983

Polyoxazole precursor and the preparation thereof

SIEMENS AG6 citations63
US4332882AJun 1, 1982

Method for the preparation of highly heat-resistant relief

SIEMENS AG6 citations63
US5777066AJul 7, 1998

Method for the production of poly-o-hydroxyamides

SIEMENS AG4 citations62

SIEMENS AKTINEGESELLSCHAFT

1 patent

Showing the top 50 of 61 patents by PatentIndex Score.