Daniel C. Merkel
147Patents
18h-index
49Co-inventors
86Inventor score
Filing activity: Jun 26, 1997 → Dec 29, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8058486B2 | Integrated process to produce 2,3,3,3-tetrafluoropropene | Emerging Cross-Sectional Technologies | 100 | Active |
| US7230146B2 | Process for producing fluoropropenes | Chemistry; Metallurgy | 90 | Expired |
| US6844475B1 | Low temperature production of 1-chloro-3,3,3-trifluoropropene (HCFC-1233zd) | Chemistry; Metallurgy | 65 | Expired |
| US8084653B2 | Method for producing fluorinated organic compounds | Chemistry; Metallurgy | 60 | Active |
| US7674939B2 | Method for producing fluorinated organic compounds | Chemistry; Metallurgy | 46 | Active |
| US7795480B2 | Method for producing 2-chloro-3,3,3,-trifluoropropene (HCFC-1233xf) | Chemistry; Metallurgy | 44 | Active |
| US7829748B1 | Process for the manufacture of 1,3,3,3-tetrafluoropropene | Performing Operations; Transporting | 39 | Active |
| US8071825B2 | Method for producing fluorinated organic compounds | Chemistry; Metallurgy | 37 | Active |
| US8258355B2 | Processes for preparing 1,1,2,3-tetrachloropropene | Chemistry; Metallurgy | 35 | Active |
| US7659434B2 | Method for producing fluorinated organic compounds | Chemistry; Metallurgy | 31 | Active |
| US6274779A | Purified 1,1,1,3,3,3-hexafluoropropane and method for making same | Chemistry; Metallurgy | 29 | Expired |
| US8034251B2 | Azeotropic compositions of 2-chloro-3,3,3-trifluoropropene (HCFC-1233xf), 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb), and hydrogen fluoride (HF) | Chemistry; Metallurgy | 27 | Active |
| US7951982B2 | Method for producing fluorinated organic compounds | Chemistry; Metallurgy | 26 | Active |
| US5918481A | Process for separating hydrogen fluoride from fluorocarbons | Chemistry; Metallurgy | 26 | Expired |
| US7803283B2 | Azeotrope-like compositions of 2-chloro-3,3,3-trifluoropropene (HCFC-1233xf) and 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) | Chemistry; Metallurgy | 22 | Active |
| US8395000B2 | Method for producing fluorinated organic compounds | Chemistry; Metallurgy | 19 | Active |
| US8975454B2 | Process for producing 2,3,3,3-tetrafluoropropene | Emerging Cross-Sectional Technologies | 18 | Active |
| US8426656B2 | Integrated process to co-produce trans-1-chloro-3,3,3-trifluoropropene and trans-1,3,3,3-tetrafluoropropene | Emerging Cross-Sectional Technologies | 18 | Active |
| US7592494B2 | Process for the manufacture of 1,3,3,3-tetrafluoropropene | Performing Operations; Transporting | 18 | Expired |
| US8367878B2 | Method for producing 2-chloro-3,3,3,-trifluoropropene (HCFC-1233xf) | Chemistry; Metallurgy | 18 | Active |
| US5902912A | Process for preparing hydrofluorocarbons | Performing Operations; Transporting | 18 | Expired |
| US8704017B2 | Continuous low-temperature process to produce trans-1-chloro-3,3,3-trifluoropropene | Emerging Cross-Sectional Technologies | 17 | Active |
| US8436217B2 | Integrated process to co-produce 1,1,1,3,3-pentafluoropropane, trans-1-chloro-3,3,3-trifluoropropene and trans-1,3,3,3-tetrafluoropropene | Emerging Cross-Sectional Technologies | 17 | Active |
| US6759381B1 | Azeotrope-like compositions of 1-chloro-1,3,3,3-tetrafluoropropane and 1,2-dichloro-3,3,3-trifluoropropene | Chemistry; Metallurgy | 16 | Expired |
| US8217208B2 | Isomerization of 1-chloro-3,3,3-trifluoropropene | Chemistry; Metallurgy | 14 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.