Mark W. Witman
24Patents
8h-index
35Co-inventors
75Inventor score
Filing activity: Mar 14, 1980 → May 4, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4299928A | Impact modified polycarbonates | Chemistry; Metallurgy | 49 | Expired |
| US4732949A | Polydiorganosiloxane/polycarbonate block copolymers | Chemistry; Metallurgy | 40 | Expired |
| US4649168A | Process for the preparation of flame-resistant polycarbonate moulding compositions containing tetrafluoroethylene polymers | Chemistry; Metallurgy | 38 | Expired |
| US4677162A | Polycarbonate blends having low gloss | Chemistry; Metallurgy | 34 | Expired |
| US4600632A | UV-stabilized polycarbonate mouldings | Emerging Cross-Sectional Technologies | 30 | Expired |
| US4753994A | Flame retardant polycarbonate compositions | Chemistry; Metallurgy | 18 | Expired |
| US4515921A | Polycarbonate compositions having a high impact strength and melt flow rate | Chemistry; Metallurgy | 14 | Expired |
| US4554314A | Thermoplastic molding compositions | Chemistry; Metallurgy | 10 | Expired |
| US4745148A | Thermoplastic polyester molding composition having an improved impact performance | Chemistry; Metallurgy | 8 | Expired |
| US4472554A | Polycarbonate ABS blends of improved impact strength | Chemistry; Metallurgy | 8 | Expired |
| US4581397A | Stabilized polycarbonate composition | Chemistry; Metallurgy | 7 | Expired |
| US4410662A | Polycarbonate having an improved impact performance | Chemistry; Metallurgy | 7 | Expired |
| US4506047A | Polycarbonate compositions having improved rigidity | Chemistry; Metallurgy | 6 | Expired |
| US4378449A | Impact modified polycarbonates | Chemistry; Metallurgy | 5 | Expired |
| US8206463B2 | Colored article of manufacture and a process for its preparation | Performing Operations; Transporting | 4 | Active |
| US5087524A | Article molded from a polycarbonate composition having improved platability | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4828921A | Polycarbonate molding compositions | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4599395A | Thermotropic, aromatic polyesters having good mechanical strength, containing sulfonic acid groups or metal sulfonate groups a process for the production thereof | Chemistry; Metallurgy | 4 | Expired |
| US4500653A | Blowing agents for thermoplastic compositions | Chemistry; Metallurgy | 3 | Expired |
| US4563503A | Polycarbonate compositions having improved impact performance | Chemistry; Metallurgy | 3 | Expired |
| US4425456A | Copolycarbonates based on bis(4-hydroxyphenyl)biphenyl disulfone | Chemistry; Metallurgy | 2 | Expired |
| US4535143A | Process for the preparation of copolycarbonates of sulfonyl diphenol | Chemistry; Metallurgy | 2 | Expired |
| US4732922A | Flame retardant polyethylene terephthalate compositions | Chemistry; Metallurgy | 1 | Expired |
| US4603170A | Moulding compositions comprising an aromatic polycarbonate and a sulfone group containing polyester | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.