Gerhard Klein
21Patents
8h-index
36Co-inventors
75Inventor score
Filing activity: Jan 20, 1982 → Oct 2, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4744827A | (Meth)-acrylic acid derivatives of tricyclodecanes and their use | Chemistry; Metallurgy | 29 | Expired |
| US4879402A | (Methyl)acrylic acid derivatives containing urethane groups | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4952241A | (Meth)acylic acid derivatives containing urethane groups | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4900800A | Powder lacquer and its use for coating heat-resistant substrates | Chemistry; Metallurgy | 12 | Expired |
| US5594087A | Polyurethane thickeners and their use for thickening aqueous systems | Chemistry; Metallurgy | 10 | Expired |
| US5612408A | Polyurethane-based thickeners for aqueous compositions | Chemistry; Metallurgy | 9 | Expired |
| US4851531A | Isocyanurate group-containing polyisocyanates | Chemistry; Metallurgy | 8 | Expired |
| US4748242A | Tertiary polyisocyanate derivatives | Chemistry; Metallurgy | 8 | Expired |
| US4613685A | Aliphatic-cycloaliphatic diisocyanates | Chemistry; Metallurgy | 8 | Expired |
| US4628112A | Amines, processes for their preparation and their use in compositions which can undergo free radical polymerization | Chemistry; Metallurgy | 5 | Expired |
| US4673713A | Arylamine derivatives which can be incorporated as copolymerized units in unsaturated resins, the preparation of these derivatives and their use as curing accelerators | Chemistry; Metallurgy | 3 | Expired |
| US4505860A | Cyclic keto-butyraldehydes a process for their preparation, and their use in the preparation of cyclic diisocyanates | Chemistry; Metallurgy | 3 | Expired |
| US4634791A | Arylamine derivatives which can be incorporated as co-polymerized units in unsaturated resins, the preparation of these derivatives and their use as curing accelerators | Chemistry; Metallurgy | 3 | Expired |
| US4777220A | Process for the production of prepolymers containing isocyanate groups, prepolymers produced by this process and their use | Chemistry; Metallurgy | 2 | Expired |
| US7763683B2 | Polyester polyols, a process for the production thereof and the use thereof | Chemistry; Metallurgy | 2 | Active |
| US4835239A | Diisocyanates and their use for the preparation of polyurethanes | Chemistry; Metallurgy | 2 | Expired |
| US7091304B2 | Process for cleaning production plants for polyester polyols | Emerging Cross-Sectional Technologies | 1 | Expired |
| US4419297A | Preparation of nitriles from formamides | Chemistry; Metallurgy | 1 | Expired |
| US4694043A | Adhesives with a high level of adhesion on plastics materials | Emerging Cross-Sectional Technologies | 1 | Expired |
| US4605703A | Adhesives with a high level of adhesion on plastics materials | Emerging Cross-Sectional Technologies | 1 | Expired |
| US4694041A | Polymerizable compositions and the use of arylamines as hardening accelerators for these compositions | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.