Inventor · Leverkusen, DE

Helmut Steinberger

25Patents
13h-index
42Co-inventors
81Inventor score

Filing activity: Jun 21, 1978 → Jul 13, 2007

Most-cited inventions

PatentTitleAreaCited byStatus
US4584360A Process for the preparation of polydiorganosiloxanes containing hydroxyaryloxy terminal groups Chemistry; Metallurgy 69 Expired
US4781844A Fluorine containing silicone textile-finishing agent: silicone suspension and perfluoroalkyl polymer Emerging Cross-Sectional Technologies 42 Expired
US4456647A Plastics mouldings finished with a three-layer coating and a process for producing the finish Emerging Cross-Sectional Technologies 35 Expired
US4351736A Pile-stabilizing silicon-containing textile agents Emerging Cross-Sectional Technologies 30 Expired
US4202807A Organopolysiloxane compositions modified with polyurethane Chemistry; Metallurgy 28 Expired
US4444973A Coatings for thermoplastics Emerging Cross-Sectional Technologies 21 Expired
US5219922A Silicone elastomers having reduced compression set and a process for their production Chemistry; Metallurgy 19 Expired
US4315091A Coatings for thermoplastics Emerging Cross-Sectional Technologies 18 Expired
US4582874A Silicone resin emulsion Chemistry; Metallurgy 15 Expired
US4463127A Crosslinkable graft polymer dispersion of organopolysiloxanes containing hydrogen-siloxane groups and Si-vinyl groups Chemistry; Metallurgy 14 Expired
US4405490A Anti-foam formulation containing an organopolysiloxane Performing Operations; Transporting 14 Expired
US4469840A Aqueous polysiloxane formulations Emerging Cross-Sectional Technologies 14 Expired
US4464506A Graft-modified siloxane dispersions for finishing textile materials Textiles; Paper 13 Expired
US4380451A Continuous dyeing and simultaneous finishing of textile materials using defoaming agent of polyoxyalkylene polysiloxane copolymer and hydrophobic silica Emerging Cross-Sectional Technologies 12 Expired
US4478893A Polyisocyanate addition products useful as mold release agents and a process for their production Chemistry; Metallurgy 11 Expired
US4562223A Defoaming agent for plastic dispersions and disperse coating materials and its preparation Performing Operations; Transporting 9 Expired
US4325739A Magnetic metal and alloy pigments Emerging Cross-Sectional Technologies 8 Expired
US4468491A Formulations of defoaming agents containing polysiloxanes and polyethers Performing Operations; Transporting 8 Expired
US5852125A Fluororubber, a process for its production and its use, as well as a process for producing fluororubber moldings and/or coatings Chemistry; Metallurgy 7 Expired
US4276389A Graft polymers containing silicon Chemistry; Metallurgy 6 Expired
US4548999A Elastomeric organopolysiloxanes containing polycarbodiimide-polysiloxane copolymers Chemistry; Metallurgy 5 Expired
US4214066A Organopolysiloxanes modified with poly-carbodiimide Chemistry; Metallurgy 4 Expired
US6887420B2 Non-stick coated molds Emerging Cross-Sectional Technologies 4 Expired
US4524172A Preparation of aqueous silicone dispersions for treating textiles Textiles; Paper 4 Expired
US7790829B2 Curable and cured silicone rubber compositions and methods therefor Chemistry; Metallurgy 2 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.