Lothar Rothbuhr
22Patents
11h-index
24Co-inventors
67Inventor score
Filing activity: Feb 11, 1974 → Jan 21, 1983
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4297145A | Silane/filler preparations, process for their production and their use | Chemistry; Metallurgy | 64 | Expired |
| US4366139A | Process for the production of water containing carbon black preparations | Chemistry; Metallurgy | 51 | Expired |
| US4128438A | Granulate form organosilane preparation | Chemistry; Metallurgy | 42 | Expired |
| US4164423A | Black pigmented UV hardening printing ink | Chemistry; Metallurgy | 31 | Expired |
| US4439401A | Process and apparatus for the production of carbon black | Chemistry; Metallurgy | 25 | Expired |
| US4292291A | Process for the production of furnace black | Chemistry; Metallurgy | 24 | Expired |
| US4442163A | Resorcinol-filler preparation, process for the production and use of the same | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4197221A | Carbon black concentrate | Performing Operations; Transporting | 16 | Expired |
| US4221772A | Carbon black for lacquers and pigments | Chemistry; Metallurgy | 12 | Expired |
| US4435377A | Oxidative after-treatment of carbon black | Chemistry; Metallurgy | 11 | Expired |
| US4636375A | Process for producing furnace blacks of variable carbon black structure | Chemistry; Metallurgy | 11 | Expired |
| US3978019A | Process for production of deep colored small particle size gas black with low content of extractable matter | Chemistry; Metallurgy | 10 | Expired |
| US4228131A | Apparatus for the production of carbon black | Chemistry; Metallurgy | 9 | Expired |
| US4238199A | Process for the control of the ratio DBP number/DBP number after pressing in the manufacture of carbon black pellets | Chemistry; Metallurgy | 8 | Expired |
| US3956106A | Apparatus and process for the production of grit free finely dispersed pigments | Chemistry; Metallurgy | 8 | Expired |
| US4179494A | Process for the production of carbon black | Chemistry; Metallurgy | 8 | Expired |
| US4430280A | Process for the production of mixed granulate from carbon black and light filler | Chemistry; Metallurgy | 2 | Expired |
| US4381949A | Resorcinol-filler preparation, process for the production and use of the same | Emerging Cross-Sectional Technologies | 2 | Expired |
| US4154808A | Process for the production of high qualtiy carbon black | Chemistry; Metallurgy | 2 | Expired |
| US4195068A | Process for the production of furnace black | Chemistry; Metallurgy | 1 | Expired |
| US4225416A | Process for the production of high quality carbon black forming material | Chemistry; Metallurgy | 0 | Expired |
| US4282198A | Process for the production of high quality carbon black | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.