Dynapol
87Patents
0Active
87Granted
37Portfolio score
Filing activity: Jun 7, 1973 → Sep 17, 1984
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4454290A | Stevioside analogs | Chemistry; Metallurgy | 82 | Expired |
| US4018826A | Process for preparing polyvinylamine and salts thereof | Emerging Cross-Sectional Technologies | 58 | Expired |
| US3996198A | One step preparation of linear antioxidant phenolic polymers involving use of impure diolefin feedstock and aluminum catalyst under ortho alkylation conditions | Chemistry; Metallurgy | 49 | Expired |
| US3996160A | Hydroquinonoid ortho-alkylation polymers and the process of their production | Chemistry; Metallurgy | 43 | Expired |
| US4205151A | Polymeric N-substituted maleimide antioxidants | Chemistry; Metallurgy | 42 | Expired |
| US4298595A | Pharmaceutical preparations containing a polymeric agent for releasing 5-aminosalicylic acid or its salts into the gastrointestinal tract | Chemistry; Metallurgy | 42 | Expired |
| US4054676A | Edible with polymeric hydroquinone antioxidant | Chemistry; Metallurgy | 38 | Expired |
| US4217214A | High molecular weight polyvinylamine hydrochloride as flocculant | Chemistry; Metallurgy | 38 | Expired |
| US4098829A | Polymeric hydroquinone antioxidant | Chemistry; Metallurgy | 35 | Expired |
| US4353889A | Rebaudioside analogs | Human Necessities | 34 | Expired |
| US4167422A | Laked high molecular weight dyes | Emerging Cross-Sectional Technologies | 31 | Expired |
| US4381185A | Water-fast printing with water-soluble dyes | Emerging Cross-Sectional Technologies | 30 | Expired |
| US4532128A | Quaternary ammonium group-containing polymers having antimicrobial activity | Human Necessities | 29 | Expired |
| US3994828A | Nonabsorbable antioxidant | Chemistry; Metallurgy | 27 | Expired |
| US4404367A | Glucosubstituented diterpenoid sweeteners | Human Necessities | 24 | Expired |
| US4482680A | Quaternary ammonium group-containing polymers having antimicrobial activity | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4490557A | Ethylidene bisformamide, its preparation and use in preparing poly(vinylamine) and salts thereof | Chemistry; Metallurgy | 23 | Expired |
| US4339237A | Free amine-containing polymeric dyes | Human Necessities | 18 | Expired |
| US3937851A | Zoned coloration | Human Necessities | 18 | Expired |
| US4393174A | Base hydrolysis of pendant amide polymers | Chemistry; Metallurgy | 17 | Expired |
| US4255548A | Ethylene-vinylamine copolymers | Emerging Cross-Sectional Technologies | 17 | Expired |
| US3995094A | Halomethylation of polystyrene | Chemistry; Metallurgy | 17 | Expired |
| US4402990A | Steviolmonoside analogs | Chemistry; Metallurgy | 17 | Expired |
| US4309543A | Process for preparing cyclic amides | Chemistry; Metallurgy | 16 | Expired |
| US3998974A | Comestibles containing non-nutritive flavoring | Chemistry; Metallurgy | 16 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.