Rhone-Poulenc Industries
523Patents
0Active
523Granted
45Portfolio score
Filing activity: Jun 25, 1973 → Apr 2, 1992
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4055861A | Support for a natural human heart valve | Emerging Cross-Sectional Technologies | 383 | Expired |
| US4275228A | Catalytic preparation of ethyl acetate | Chemistry; Metallurgy | 126 | Expired |
| US4385089A | Process for preparing biaxially oriented hollow shaped articles from thermoplastic materials | Emerging Cross-Sectional Technologies | 111 | Expired |
| US4358388A | Magnetic polymer latex and preparation process | Physics | 103 | Expired |
| US4248802A | Catalytic hydroformylation of olefins | Performing Operations; Transporting | 87 | Expired |
| US4240918A | Anti-soiling and anti-redeposition adjuvants and detergent compositions comprised thereof | Emerging Cross-Sectional Technologies | 67 | Expired |
| US4143088A | Rapidly curable, storage-stable organosilicon compositions | Chemistry; Metallurgy | 67 | Expired |
| US4032993A | Bioresorbable surgical articles | Human Necessities | 63 | Expired |
| US4339337A | Process for the preparation of magnetic beads of vinylaromatic polymers | Physics | 61 | Expired |
| US4131399A | Peristaltic tube pump with means preventing complete occlusion of tube | Mechanical Engineering; Lighting; Heating | 55 | Expired |
| US4434231A | Means for embedding microorganisms in a polymer matrix | Emerging Cross-Sectional Technologies | 55 | Expired |
| US4387184A | Heat stable polyphase polyamide compositions and preparation thereof | Chemistry; Metallurgy | 49 | Expired |
| US4233427A | Elastomeric organopolysiloxane block copolymers and non-elastomeric organosilicic copolymer blocks therefor | Chemistry; Metallurgy | 44 | Expired |
| US4704425A | Novel precipitated silica particulates | Chemistry; Metallurgy | 43 | Expired |
| US4435601A | Preparation of polyphenols by oxidation of hydroxybenzaldehydes | Chemistry; Metallurgy | 42 | Expired |
| US4272673A | Heating element | Electricity | 39 | Expired |
| US4529410A | Rare earth polishing compositions | Chemistry; Metallurgy | 38 | Expired |
| US4340721A | Novel polyester for the packaging of comestibles | Emerging Cross-Sectional Technologies | 37 | Expired |
| US4287219A | Fibrous edible proteins having fat particles homogeneously dispersed therethrough | Emerging Cross-Sectional Technologies | 37 | Expired |
| US4068035A | Hydrophilic polyurethanes and textiles treated therewith | Emerging Cross-Sectional Technologies | 36 | Expired |
| US4201824A | Hydrophilic polyurethanes and their application as soil-release, anti-soil redeposition, and anti-static agents for textile substrates | Emerging Cross-Sectional Technologies | 35 | Expired |
| US4100149A | Method of separating proteins by ion exchange | Emerging Cross-Sectional Technologies | 34 | Expired |
| US4251281A | Synthetic amorphous silica for elastomeric reinforcement and methods therefor | Chemistry; Metallurgy | 34 | Expired |
| US4034139A | Grafted mineral carriers for fixing enzymes | Emerging Cross-Sectional Technologies | 33 | Expired |
| US4207182A | Polymeric compositions for membranes | Emerging Cross-Sectional Technologies | 33 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.