Edward E. Jaffe
42Patents
16h-index
26Co-inventors
81Inventor score
Filing activity: Aug 8, 1974 → Dec 23, 2003
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5871827A | Finishes containing light interference pigments | Emerging Cross-Sectional Technologies | 41 | Expired |
| US4857646A | Modified beta-quinacridone pigment | Chemistry; Metallurgy | 35 | Expired |
| US4455173A | Preparation of pigmentary form of quinacridone pigments | Chemistry; Metallurgy | 35 | Expired |
| US5194088A | Process for conditioning organic pigments | Chemistry; Metallurgy | 33 | Expired |
| US4760004A | Thioquinacridones and isothioquinacridones, preparation and use thereof | Electricity | 29 | Expired |
| US4810304A | Solid solutions of pyrrolo-(3,4-C)-pyrroles with quinacridones | Chemistry; Metallurgy | 28 | Expired |
| US4895949A | Process for preparation of quinacridone solid solutions | Chemistry; Metallurgy | 26 | Expired |
| US4844742A | Surface modified pigment compositions | Chemistry; Metallurgy | 21 | Expired |
| US5286863A | Oxidation process for preparing quinacridone pigments | Chemistry; Metallurgy | 20 | Expired |
| US4541872A | Preparation of pigmentary grade pigment from crude pigment | Chemistry; Metallurgy | 19 | Expired |
| US4478968A | Manufacture of resin extended pigments | Chemistry; Metallurgy | 19 | Expired |
| US5424429A | Preparation of pigmentary 2,9-dichloroquinacridone | Chemistry; Metallurgy | 18 | Expired |
| US4369272A | Process for preparing polyolefin resin extended pigments comprising salt milling crude pigment with the resin | Chemistry; Metallurgy | 18 | Expired |
| US5457203A | Pigmentary synthesis of quinacridone solid solutions | Chemistry; Metallurgy | 17 | Expired |
| US4371642A | Process for preparing polyolefin resin extended pigments | Chemistry; Metallurgy | 17 | Expired |
| US4692189A | Novel compositions based on indanthrone blue pigments | Chemistry; Metallurgy | 16 | Expired |
| US4760144A | Process for preparation of yellow shade modification of gamma quinacridone | Chemistry; Metallurgy | 13 | Expired |
| US5618343A | Pigment compositions for coatings | Chemistry; Metallurgy | 13 | Expired |
| US5084573A | 2,9-dichloroquinacridone in platelet form | Chemistry; Metallurgy | 13 | Expired |
| US5229515A | Process for preparing modified .beta.-quinacridone pigment | Chemistry; Metallurgy | 12 | Expired |
| US5223624A | Modified gamma-quinacridone pigment | Chemistry; Metallurgy | 12 | Expired |
| US4548968A | Manufacture of resin extended pigments | Chemistry; Metallurgy | 11 | Expired |
| US5025041A | Pearlescent coating compositions | Chemistry; Metallurgy | 10 | Expired |
| US4992101A | Process for the preparation of opaque diketopyrrolo-pyrrole pigments | Chemistry; Metallurgy | 10 | Expired |
| US5095056A | 2,9-dichloroquinacridone-pigmented engineering plastics and coatings | Chemistry; Metallurgy | 10 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.