Thomas Gerdau
17Patents
5h-index
13Co-inventors
59Inventor score
Filing activity: May 8, 1987 → May 10, 1996
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5585523A | Process for the preparation of aldehydes by catalytic gas phase hydrogenation of carboxylic acid or their derivatives with the aid of a tin catalyst | Chemistry; Metallurgy | 64 | Expired |
| US5176941A | Process of producing a ceramic/fiber composite using a molten polysilazone | Chemistry; Metallurgy | 10 | Expired |
| US5650537A | Process for the preparation of N-acyl-.alpha.-amino acid derivatives | Chemistry; Metallurgy | 8 | Expired |
| US4931513A | Polymeric hydridosilazanes and processes for their preparation and their use | Chemistry; Metallurgy | 5 | Expired |
| US5008423A | Polymeric hydridochlorosilazanes and processes for their preparation | Chemistry; Metallurgy | 5 | Expired |
| US5081078A | Sinterable ceramic powder, process for its preparation, silicon nitride ceramic manufactured therefrom, process for its manufacture and its use | Chemistry; Metallurgy | 4 | Expired |
| US4859562A | Photosensitive mixture and photosensitive recording material produced therefrom with polymeric compound which is reaction product of unsaturated (thio)phosphinic acid iso(thio)cyanate and active hydrogen containing compound | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5231224A | Alkyl ether carboxylic acid taurides | Chemistry; Metallurgy | 3 | Expired |
| US5648551A | Process for the preparation of halobenzaldehydes | Chemistry; Metallurgy | 2 | Expired |
| US4859795A | Ethylenically unsaturated phosphinic acid and thiophosphinic acid isocyanates and isothiocyanates, and a process for their preparation | Chemistry; Metallurgy | 2 | Expired |
| US5066623A | Polymeric hydridosilazanes and processes for their preparation, and their use | Chemistry; Metallurgy | 1 | Expired |
| US4939225A | Polymeric hydridosilazanes, processes for the preparation thereof, silicon nitride-containing ceramic materials which can be prepared therefrom, and the preparation thereof | Chemistry; Metallurgy | 1 | Expired |
| US4966991A | Process for the preparation of alkali metal phosphonoformates | Chemistry; Metallurgy | 1 | Expired |
| US5075266A | Process for the production of ceramic material containing silicon nitride from polymeric hydridochlorosilazanes | Chemistry; Metallurgy | 1 | Expired |
| US5189132A | Polymeric hydridochlorosilazanes, process for their preparation, ceramic materials containing silicon nitride which can be manufactured therefrom, and their manufacture | Chemistry; Metallurgy | 0 | Expired |
| US5719284A | Process for the preparation of substituted 3-arylquinazoline-2,4-diones | Chemistry; Metallurgy | 0 | Expired |
| US5081080A | Polymeric hydridosilazanes, processes for the preparation thereof, silicon nitride-containing ceramic materials which can be prepared therefrom, and the preparation thereof | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.