Robert A. Lofquist
20Patents
10h-index
9Co-inventors
68Inventor score
Filing activity: Oct 1, 1973 → Jul 27, 1995
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4847142A | Moisture permeable film for lamination to a textile material | Emerging Cross-Sectional Technologies | 38 | Expired |
| US4808675A | Moisture permeable film for lamination to a textile material | Emerging Cross-Sectional Technologies | 32 | Expired |
| US5618909A | Light stabilized polyamide substrate and process for making | Chemistry; Metallurgy | 31 | Expired |
| US4097546A | Ozone resistant, cationic dyeable nylon containing lithium, magnesium or calcium salts of sulfonated polystyrene copolymers | Chemistry; Metallurgy | 21 | Expired |
| US4083893A | Ozone resistant, cationic dyeable nylon containing lithium, magnesium or calcium salts of sulfonated polystyrene | Chemistry; Metallurgy | 21 | Expired |
| US4061621A | Production of polycaproamide fiber from polycaproamide reacted with cyclic tetracarboxylic acid dianhydride | Chemistry; Metallurgy | 14 | Expired |
| US4398012A | Transparent copolyamide from caprolactam, cyclic diamine and cyclic dicarboxylic acid | Chemistry; Metallurgy | 14 | Expired |
| US4348314A | Production of thermally stabilized polyester with alkylene carbonates and sodium or potassium thiocyanate | Chemistry; Metallurgy | 13 | Expired |
| US5478624A | Synthetic yarn with heat-activated binder fiber | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4558097A | Nylon comfort fiber containing poly(N,N-dimethylacrylamide) | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4919997A | Melt-blown water-absorbing tissues and matts | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5141780A | Multifilament yarn with adhesive polymer component | Textiles; Paper | 6 | Expired |
| US3964861A | Alkoxylated aliphatic amines to inhibit ozone fading of dyed polyamides | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4075271A | Production of polycaproamide fiber wherein polycaproamide is reacted with phenylene bis-(3-butane-1,2-dicarboxylic anhydride) | Chemistry; Metallurgy | 5 | Expired |
| US4325397A | Method to reduce pressure drop in polyamide process piping | Emerging Cross-Sectional Technologies | 3 | Expired |
| US3984202A | Alkanolamines to reduce ozone attack on dyes in polyamide fibers | Emerging Cross-Sectional Technologies | 2 | Expired |
| US3989455A | Tertiary amines, substituted piperidine, morpholine or piperazine containing fatty acid moieties to prevent ozone fading of nylon fibers | Emerging Cross-Sectional Technologies | 2 | Expired |
| US4591473A | Method of spinning a nylon yarn having improved retention of a soil repellent finish on the nylon yarn | Textiles; Paper | 2 | Expired |
| US4105404A | Substituted thioureas to inhibit ozone fading of dyed polyamides | Textiles; Paper | 2 | Expired |
| US4458053A | Nylon comfort fiber containing poly(N,N-dimethylacrylamide) | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.