Polypure, Inc.
7Patents
0Active
7Granted
29Portfolio score
Filing activity: Jun 8, 1988 → Aug 15, 1990
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4981936A | Terpolymer of oxyalkyene acrylates, acrylamides and quaternary monomers | Chemistry; Metallurgy | 31 | Expired |
| US4988442A | Process for dewatering of biological sludge | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5132383A | Copolymers of 3-methacryloyloxy-2-hydroxypropyl trimethylammonium chloride monomer and vinyl monomer | Chemistry; Metallurgy | 8 | Expired |
| US5008319A | Homogeneous mixtures of solid organic acids and solid cationic ester-based polymer flocculants | Chemistry; Metallurgy | 6 | Expired |
| US5019275A | Method of flocculation with cationic terpolymer flocculants | Chemistry; Metallurgy | 3 | Expired |
| US4888396A | Novel cationic acrylamide polymers and processes for their preparation | Chemistry; Metallurgy | 0 | Expired |
| US5008444A | Process for the production of substituted acryloyloxyhydroxypropyltrialkylammonium chloride | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.