Alfred E. Keller
45Patents
12h-index
32Co-inventors
81Inventor score
Filing activity: Apr 14, 1975 → Sep 4, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5006258A | Regeneration of acidic cationic exchange resin used in the reactivation of spent alkanolamine | Performing Operations; Transporting | 26 | Expired |
| US6946111B2 | Short contact time catalytic partial oxidation process for recovering sulfur from an H2S containing gas stream | Emerging Cross-Sectional Technologies | 24 | Expired |
| US6403051B1 | Recovery of sulfur from H2S and concurrent production of H2 using short contact time CPOX | Chemistry; Metallurgy | 20 | Expired |
| US4970344A | Reactivation of spent alkanolamine | Performing Operations; Transporting | 20 | Expired |
| US7501111B2 | Increased capacity sulfur recovery plant and process for recovering elemental sulfur | Emerging Cross-Sectional Technologies | 16 | Active |
| US6773691B2 | Controlling syngas H2:CO ratio by controlling feed hydrocarbon composition | Chemistry; Metallurgy | 15 | Expired |
| US6579510B2 | SPOX-enhanced process for production of synthesis gas | Emerging Cross-Sectional Technologies | 15 | Expired |
| US6800269B2 | Short contact time catalytic sulfur recovery system for removing H2S from a waste gas stream | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5130149A | Process for the manufacture of novel coffee flavorants | Chemistry; Metallurgy | 14 | Expired |
| US7560088B2 | Compact sulfur recovery plant and process | Emerging Cross-Sectional Technologies | 13 | Active |
| US5162084A | Process for monitoring and controlling an alkanolamine reaction process | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5368818A | Monitoring and control system for selective regeneration of alkanolamine from cation ion exchange resin with sodium hydroxide | Performing Operations; Transporting | 12 | Expired |
| US5045291A | Reactivation of spent alkanolamine | Performing Operations; Transporting | 12 | Expired |
| US7226572B1 | Compact sulfur recovery plant and process | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5596930A | Process and device for moistening a moving printed then thermally dried web of material | Performing Operations; Transporting | 9 | Expired |
| US4015682A | Protecting system for roadway adjacent areas | Fixed Constructions | 8 | Expired |
| US7138101B2 | Two-stage catalytic process for recovering sulfur from an H2S-containing gas stream | Chemistry; Metallurgy | 8 | Expired |
| US7041621B2 | Sulfided catalysts for improved performance in hydrocarbon processing | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5336832A | Recovery of HF from hydrocarbon streams | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5190662A | Removal of iron sulfide particles from alkanolamine solutions | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5408715A | Method and system for the treatment of webs of textile material by liquids and steam | Textiles; Paper | 6 | Expired |
| US5063758A | Apparatus for applying a treatment fluid having pivotal nozzle combs | Textiles; Paper | 6 | Expired |
| US7357908B2 | Apparatus and catalytic partial oxidation process for recovering sulfur from an H2S-containing gas stream | Chemistry; Metallurgy | 6 | Expired |
| US6881394B2 | Steam reformer for methane with internal hydrogen separation and combustion | Emerging Cross-Sectional Technologies | 5 | Expired |
| US7122170B2 | Catalysts for SPOC™ enhanced synthesis gas production | Emerging Cross-Sectional Technologies | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.