RHONE-POULENC CHIMIE
759Patents
0Active
759Granted
45Portfolio score
Filing activity: Jun 24, 1986 → Feb 19, 2002
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5905168A | Process for treating a material comprising a polymer by hydrolysis | Chemistry; Metallurgy | 151 | Expired |
| US5290631A | Hydrosoluble/hydrodispersible polyesters and sizing of textile threads therewith | Emerging Cross-Sectional Technologies | 106 | Expired |
| US5066487A | Antisudoral composition comprising dibasic aluminium salts of acylated amino acids | Human Necessities | 90 | Expired |
| US4959252A | Highly oriented thermotropic optical disc member | Emerging Cross-Sectional Technologies | 83 | Expired |
| US5290350A | Insulating shaped articles comprising inorganic fibrous matrices and xanthan gum/cationic starch binders | Chemistry; Metallurgy | 79 | Expired |
| US5556628A | Free-flowing pseudoplastic cosmetic compositions/suspensions | Human Necessities | 76 | Expired |
| US5662874A | Preparation of ammonium rare earth double oxalates and rare earth oxides produced therefrom | Chemistry; Metallurgy | 76 | Expired |
| US5356713A | Magnetizable composite microspheres of hydrophobic crosslinked polymer, process for preparing them and their application in biology | Emerging Cross-Sectional Technologies | 75 | Expired |
| US5476827A | Process for the synthesis of aldehydes and their derivatives and catalyst for use thereof | Chemistry; Metallurgy | 71 | Expired |
| US5340898A | Cationically crosslinkable polyorganosiloxanes and antiadhesive coatings produced therefrom | Emerging Cross-Sectional Technologies | 64 | Expired |
| US5403570A | Dispersible silica particulates | Emerging Cross-Sectional Technologies | 58 | Expired |
| US5607892A | Zirconium/cerium mixed oxide catalyst/catalyst support compositions having high/stable specific surfaces | Emerging Cross-Sectional Technologies | 58 | Expired |
| US6214306A | Composition based on zirconium oxide and cerium oxide, preparation method therefor and use thereof | Emerging Cross-Sectional Technologies | 57 | Expired |
| US5712218A | Cerium/zirconium mixed oxide catalysts having high/stable specific surface areas | Chemistry; Metallurgy | 56 | Expired |
| US5536813A | Detersive polyanhydroaspartic acids and biodegradable hydrolysates thereof | Chemistry; Metallurgy | 52 | Expired |
| US5009874A | Hydrophobic precipitated silica granules | Chemistry; Metallurgy | 51 | Expired |
| US5457040A | Production of itaconic acid by fermentation | Emerging Cross-Sectional Technologies | 51 | Expired |
| US5693299A | Process for the catalytic conversion of exhaust gases using cerium/zirconium mixed oxide catalyst | Chemistry; Metallurgy | 49 | Expired |
| US5908800A | Composition precursor and mixed cerium and zirconium oxide-based composition, and procedure for preparation and use thereof | Chemistry; Metallurgy | 49 | Expired |
| US5858928A | Gel of an apolar medium, its use for the preparation of water-based drilling fluids | Human Necessities | 48 | Expired |
| US4808649A | Beta-ketoester substituted diorganopolysiloxanes and PVC stabilzers comprised thereof | Chemistry; Metallurgy | 45 | Expired |
| US5106607A | Multilobar catalysts for the conversion of sulfur containing gaseous effluents | Emerging Cross-Sectional Technologies | 43 | Expired |
| US5334769A | Process for the synthesis of aldehydes and their derivatives | Chemistry; Metallurgy | 41 | Expired |
| US5415860A | Cosmetic compositions comprising aqueous emulsions of organopolysiloxanes | Chemistry; Metallurgy | 40 | Expired |
| US5399750A | Preparation of maleamic acid | Chemistry; Metallurgy | 40 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.