Eric James Pressman
60Patents
12h-index
54Co-inventors
87Inventor score
Filing activity: Nov 14, 1983 → Apr 22, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5231210A | Method for making aromatic carbonates | Chemistry; Metallurgy | 68 | Expired |
| US5284964A | Method for making aromatic carbonates | Chemistry; Metallurgy | 66 | Expired |
| US5760272A | Method for preparing diaryl carbonates with improved selectivity | Chemistry; Metallurgy | 62 | Expired |
| US5399734A | Method for making aromatic organic carbonates | Chemistry; Metallurgy | 61 | Expired |
| US4584416A | Method and catalyst for making bisphenol | Performing Operations; Transporting | 37 | Expired |
| US5414151A | Method for making bisphenol | Chemistry; Metallurgy | 28 | Expired |
| US6172254A | Catalyst composition and method for producing diaryl carbonates using nitrile as promoter | Performing Operations; Transporting | 23 | Expired |
| US4695594A | Modified flame retardant polyphenylene ether resins having improved foamability and molded articles made therefrom | Emerging Cross-Sectional Technologies | 23 | Expired |
| US6180812A | Catalyst composition and method for producing diaryl carbonates using amide as promoter | Performing Operations; Transporting | 21 | Expired |
| US6197991A | Method and catalyst system for producing | Performing Operations; Transporting | 21 | Expired |
| US6114564A | Catalyst composition and method for producing diaryl carbonates | Performing Operations; Transporting | 21 | Expired |
| US5723689A | Process for recovering bisphenols | Chemistry; Metallurgy | 13 | Expired |
| US5428075A | Method for regenerating a sulfonated aromatic organic polymeric ion-exchange resin bed having deactivated aminoorganomercaptan groups with phenol | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5981788A | Method for recovering and recycling catalyst constituents | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5898079A | Method for preparing diaryl carbonates employing hexaalkylguanidinium halides | Chemistry; Metallurgy | 9 | Expired |
| US6197916A | Method for preparing bisphenol A | Chemistry; Metallurgy | 8 | Expired |
| US5312955A | Method for making aromatic organic carbonates | Chemistry; Metallurgy | 8 | Expired |
| US7495113B2 | Method of purifying dianhydrides | Chemistry; Metallurgy | 7 | Active |
| US4791145A | Modified flame retardant polyphenylene ether resins having improved foamability and molded articles made therefrom | Chemistry; Metallurgy | 7 | Expired |
| US6303835A | Method for recovering material values from bisphenol tars | Chemistry; Metallurgy | 7 | Expired |
| US5723691A | Method for preparing ion-exchange resin for use as a catalyst in the synthesis of bisphenols | Performing Operations; Transporting | 6 | Expired |
| US6143914A | Method and catalyst system for producing aromatic carbonates | Performing Operations; Transporting | 6 | Expired |
| US6380417B1 | Catalysts system for producing aromatic carbonates | Performing Operations; Transporting | 5 | Expired |
| US6215014A | Catalyst composition and method for producing diaryl carbonates | Performing Operations; Transporting | 5 | Expired |
| US6815565B2 | Method for preparing hydroquinones and dihydroxybiphenyl compounds from mixtures of bromophenols and benzoquinones | Chemistry; Metallurgy | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.