Richard Weider
28Patents
6h-index
49Co-inventors
65Inventor score
Filing activity: Nov 7, 1989 → Aug 31, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5750602A | Flameproofed polycarbonate/ABS blends resistant to stress cracking | Chemistry; Metallurgy | 28 | Expired |
| US5274114A | Preparation and use of 3, (4)-substituted pyrrolidines as catalysts for the polyisocyanate polyaddition process | Chemistry; Metallurgy | 11 | Expired |
| US5693697A | Flame-resistant polycarbonate moulding-compositions | Chemistry; Metallurgy | 10 | Expired |
| US5134217A | Use of N-(aminoalkyl) pyrrolidines as catalysts for the polyisocyanate polyaddition process | Chemistry; Metallurgy | 7 | Expired |
| US5250494A | Dye acceptor element for the thermal sublimation printing process | Emerging Cross-Sectional Technologies | 7 | Expired |
| US8362119B2 | Halogen free flame-retardant thermoplastic moulding compositions based on polyamide with increased glow-wire resistance | Chemistry; Metallurgy | 6 | Active |
| US5464893A | Radiation-resistant polycarbonates | Chemistry; Metallurgy | 5 | Expired |
| US5326800A | Use of salts in combination with halogenated phthalimides for flameproof finishing of glass fibre-containing polycarbonate moulded members | Chemistry; Metallurgy | 5 | Expired |
| US6239225A | Process for the manufacture of impact resistant modified polymers | Chemistry; Metallurgy | 5 | Expired |
| US5274182A | Saturated, liquid isobutylene polymers terminally functionalized by special groups | Chemistry; Metallurgy | 4 | Expired |
| USRE38415E1 | Use of N-(aminoalkyl) pyrrolidines as catalysts for the polyisocyanate polyaddition process | General | 4 | Expired |
| US6417256B1 | Polycarbonate-ABS moulding materials | Chemistry; Metallurgy | 4 | Expired |
| US6093789A | Process for the preparation of polymers with repeating succinyl units using catalysts | Chemistry; Metallurgy | 4 | Expired |
| US5137971A | Graft copolymers, their production and use | Chemistry; Metallurgy | 3 | Expired |
| US5484857A | Single-stage process for the preparation of polyisobutylene carboxylic acids | Chemistry; Metallurgy | 3 | Expired |
| US5356965A | Flame-resistant polycarbonate molding compositions | Chemistry; Metallurgy | 3 | Expired |
| US5747586A | High-impact molding compounds based on polyisobutylene-containing polycarbonate | Chemistry; Metallurgy | 3 | Expired |
| US5063252A | Process for the production of plastics by the polyisocyanate polyaddition process and catalysts suitable for this process | Chemistry; Metallurgy | 2 | Expired |
| US5525674A | Polycarbonates with aliphatic ketocarboxyl end groups, mixed with known aromatic polycarbonates, their preparation and their use | Chemistry; Metallurgy | 1 | Expired |
| US6482897B1 | Process for producing ABS moulding compositions having a high rubber content | Chemistry; Metallurgy | 1 | Expired |
| US5110895A | Polyester and polyester carbonate from terephthalic or isophthalic acid, phosgene and phenols with heat resistance and light stability | Chemistry; Metallurgy | 1 | Expired |
| US5717027A | Block copolycarbonates with polyisobutylene-.alpha.-haloketocarboxylic acid blocks | Chemistry; Metallurgy | 1 | Expired |
| US5747589A | Process for the production of polycarbonate-polyisobutylene block cocondensates | Chemistry; Metallurgy | 0 | Expired |
| US5548011A | Blends of polycarbonates, dimeric fatty acid polyesters and PIB rubbers, silicones or mineral oils | Chemistry; Metallurgy | 0 | Expired |
| US7144981B2 | Process for separating volatile components from polymers | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.