John Walden
8Patents
7h-index
6Co-inventors
52Inventor score
Filing activity: Jan 11, 1974 → Nov 22, 1989
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4344650A | Recovery of alkali values from trona deposits | Emerging Cross-Sectional Technologies | 38 | Expired |
| US3933977A | Process for producing sodium carbonate | Chemistry; Metallurgy | 23 | Expired |
| US5126889A | Technique for information protection on fault-tolerant redundant information storage devices | Physics | 21 | Expired |
| US4795818A | Optimizing the yield of maleic anhydride catalyst | Performing Operations; Transporting | 20 | Expired |
| US3975499A | Sodium carbonate monohydrate crystallization | Chemistry; Metallurgy | 12 | Expired |
| US4185079A | Removal of phosphine contaminant from carbon monoxide gas mixtures | Chemistry; Metallurgy | 8 | Expired |
| US4019872A | Producing sodium carbonate monohydrate from carbonate solution including addition of aluminum ions | Chemistry; Metallurgy | 7 | Expired |
| US4175111A | Removal of phosphine from phosphine-contaminated carbon monoxide gas streams | Chemistry; Metallurgy | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.