Rhodia Fiber & Resin Intermediates
31Patents
0Active
31Granted
34Portfolio score
Filing activity: Apr 10, 1998 → May 17, 2004
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6559333B1 | Method for purifying aliphatic aminonitriles | Chemistry; Metallurgy | 67 | Expired |
| US6469194B2 | Production of nitriles via hydrocyanation of ethylenically unsaturated organic compounds | Emerging Cross-Sectional Technologies | 17 | Expired |
| US6521779B1 | Hemihydrogenation method for dinitriles | Chemistry; Metallurgy | 17 | Expired |
| US6518449B1 | Method for regenerating a hydrogenation catalyst, method for hydrogenating compounds comprising nitrile functions | Emerging Cross-Sectional Technologies | 15 | Expired |
| US6492525B1 | Organometallic complexes comprising cationic heterocyclic carbenes | Chemistry; Metallurgy | 12 | Expired |
| US6312578A | Method for extracting amine compounds from a liquid medium | Chemistry; Metallurgy | 11 | Expired |
| US6069246A | Method for treating lactams | Chemistry; Metallurgy | 7 | Expired |
| US6787669B1 | Method for separating and purifying adipic acid | Chemistry; Metallurgy | 7 | Expired |
| US6100396A | Method for purifying lactams | Chemistry; Metallurgy | 6 | Expired |
| US6635151B1 | Lactam dehydration method | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6613939B2 | Purified sulfonated organophosphorus compounds and catalysis of organic reactions therewith | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6478968B1 | Method for filtering a three-phased reaction mixture | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6232488A | Method for hydrogenating dinitriles | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6482297B1 | Method for distilling ammonia | Emerging Cross-Sectional Technologies | 4 | Expired |
| US6083869A | Method for preparing ammoxidation catalysts | Emerging Cross-Sectional Technologies | 4 | Expired |
| US6214190A | Method for separating a catalyst by membrane electrodialysis | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6147256A | Co/Cr catalyzyed oxidation of cyclohexane | Chemistry; Metallurgy | 3 | Expired |
| US6372942B1 | Pentenoic acid hydroxycarbonylation method | Chemistry; Metallurgy | 2 | Expired |
| US6479658B1 | Method for cyclizing hydrolysis of an aminonitrile compound into lactam | Chemistry; Metallurgy | 2 | Expired |
| US6822117B1 | Method for making adipic acid | Chemistry; Metallurgy | 2 | Expired |
| US6384283B1 | Method for preparing aminonitrile and diamine | Chemistry; Metallurgy | 2 | Expired |
| US6835830B1 | Method for evaporating aminonitrile | Chemistry; Metallurgy | 1 | Expired |
| US6538156B1 | Method for purifying adipic acid by crystallization | Chemistry; Metallurgy | 1 | Expired |
| US6559339B1 | Method for crystallizing carboxylic acid | Chemistry; Metallurgy | 1 | Expired |
| US6417375B1 | Furylphosphines and organometallic complexes containing them | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.