Robert E. Wingard, Jr.
27Patents
13h-index
18Co-inventors
78Inventor score
Filing activity: Nov 4, 1974 → May 2, 1994
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4018826A | Process for preparing polyvinylamine and salts thereof | Emerging Cross-Sectional Technologies | 58 | Expired |
| US4298595A | Pharmaceutical preparations containing a polymeric agent for releasing 5-aminosalicylic acid or its salts into the gastrointestinal tract | Chemistry; Metallurgy | 42 | 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 |
| US5298611A | Sucralose pentaester production | Chemistry; Metallurgy | 28 | Expired |
| US5023329A | Sucrose-6-ester production process | Chemistry; Metallurgy | 28 | Expired |
| US5089608A | Selective 6-acylation of sucrose mediated by cyclic adducts of dialkyltin oxides and diols | Chemistry; Metallurgy | 25 | Expired |
| US5470969A | Catalyzed sucrose-6-ester process | Chemistry; Metallurgy | 24 | Expired |
| US4482680A | Quaternary ammonium group-containing polymers having antimicrobial activity | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4339237A | Free amine-containing polymeric dyes | Human Necessities | 18 | Expired |
| US4255548A | Ethylene-vinylamine copolymers | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4375357A | Water-soluble fast polymeric black colorant, its preparation and use in dyes and inks | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4190716A | Polymeric agent for releasing 5-aminosalicylic acid or its salts into the gastrointestinal tract | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4144252A | Water-soluble amine-linked polymeric colorants | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4051138A | Water-soluble amine-linked polymeric colorants | Human Necessities | 9 | Expired |
| US4238579A | Vinylamine aromatic copolymers and salts thereof | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4169203A | Water-soluble polymeric colorants containing anionic water-solubilizing groups | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4275002A | Process for preparing polymeric colorants having a poly(vinylamine) backbone | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4260714A | Acetamidoethylene copolymers | Chemistry; Metallurgy | 6 | Expired |
| US4386206A | Tertiary amides as solvents in anthrapyridone syntheses | Chemistry; Metallurgy | 6 | Expired |
| US4382800A | Free amine-containing polymeric dyes | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4258189A | Process for preparing orange polymeric colorants | Chemistry; Metallurgy | 5 | Expired |
| US4204007A | 4-(Dihydroxyhexoxy)dihydrochalcone sweeteners | Chemistry; Metallurgy | 4 | Expired |
| US4150038A | Conversion of hesperidin into hesperetin | Chemistry; Metallurgy | 2 | Expired |
| US4138409A | Epoxysultone | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.