Societe d'Expansion Scientifique Expansia
7Patents
0Active
7Granted
26Portfolio score
Filing activity: Mar 17, 1982 → Aug 5, 1999
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4439545A | Acrylic copolymers of N-acryloylpolymethyleneimines or N-acryloyldialkylamides, N,N'-acryloyldiaminoalcanes and N-acryloylaminoacids (or esters) their preparation and use as cation exchangers | Chemistry; Metallurgy | 12 | Expired |
| US4436874A | Acrylic copolymers and their use in solid phase peptide synthesis | Chemistry; Metallurgy | 9 | Expired |
| US5175254A | Solid phase peptide synthesis using a polyacrylic support in aqueous solution | Chemistry; Metallurgy | 4 | Expired |
| US6107495A | Thienylcyclohexane derivatives for thienylcyclohexyl synthesis | Chemistry; Metallurgy | 2 | Expired |
| US4436919A | Borane complexes | Chemistry; Metallurgy | 1 | Expired |
| US6160157A | Preparation of 4-cyano-4'-hydroxybiphenyl | Chemistry; Metallurgy | 0 | Expired |
| US6046352A | Preparation of 4-cyano-4'-hydroxybiphenyl | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.