Pierre Duhamel
45Patents
9h-index
47Co-inventors
75Inventor score
Filing activity: Sep 23, 1985 → Aug 19, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5208255A | Thioester enantiomeric compounds and their therapeutic uses | Chemistry; Metallurgy | 92 | Expired |
| US5599951A | Amino acid derivatives, the process for their preparation and their applications to therapy | Chemistry; Metallurgy | 86 | Expired |
| US5031038A | Process and device for the compression of image data by mathematical transformation effected at low cost, particularly for the transmission at a reduced rate of sequences of images | Physics | 33 | Expired |
| US5363096A | Method and apparatus for encoding-decoding a digital signal | Physics | 19 | Expired |
| US4831574A | Device for computing a digital transform of a signal | Physics | 12 | Expired |
| US4797847A | Discrete cosine transformer | Physics | 12 | Expired |
| US5136076A | Process for the preparation of amino acid-derived enatiomeric compounds | Chemistry; Metallurgy | 12 | Expired |
| US5734715A | Process and device for adaptive identification and adaptive echo canceller relating thereto | Electricity | 10 | Expired |
| US5296509A | Thioester enantiomeric compounds and their therapeutic uses | Chemistry; Metallurgy | 9 | Expired |
| US7031492B1 | Digital data watermarking system using novel watermark insertion and detection methods | Electricity | 9 | Expired |
| US5331008A | Thioester enantiomeric compounds and their therapeutic uses | Chemistry; Metallurgy | 9 | Expired |
| US4920509A | Binary calculation circuit | Physics | 8 | Expired |
| US5646313A | Amino acid derivatives, processes for their preparation and their therapeutic application | Chemistry; Metallurgy | 7 | Expired |
| US4974186A | Generalized digital multiplier and digital filter using said multiplier | Physics | 5 | Expired |
| US5424460A | Synthesis intermediates containing a hexane ring and processes for their preparation | Chemistry; Metallurgy | 5 | Expired |
| US6927707B2 | Method for decoding variable length codes and corresponding receiver | Electricity | 4 | Expired |
| US5612371A | Amino acid, derivatives, processes for their preparation and their therapeutic application | Chemistry; Metallurgy | 4 | Expired |
| US5120864A | Intermediates, process for their preparation, and their use for the synthesis of vitamins A and E | Chemistry; Metallurgy | 3 | Expired |
| US5095455A | Binary multiplier circuit with improved inputs | Physics | 3 | Expired |
| US5817890A | Process for preparation of halogenated or pseudohalogenated cyclic organic compounds | Chemistry; Metallurgy | 2 | Expired |
| US5670531A | Amino acid derivatives, the process for their preparation and their applications to therapy | Chemistry; Metallurgy | 2 | Expired |
| US6878723B1 | LTA4 hydrolase inhibitors | Chemistry; Metallurgy | 2 | Expired |
| US4788654A | Device for real time processing of digital signals by convolution | Physics | 2 | Expired |
| US5145972A | Process for preparing halo acetals from enamines | Chemistry; Metallurgy | 2 | Expired |
| US5266708A | New intermediates, process for their preparation, and their use for the synthesis of vitamins A and E | Chemistry; Metallurgy | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.