Thomas E. Richards
5Patents
2h-index
9Co-inventors
44Inventor score
Filing activity: Nov 18, 1977 → Jan 24, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4303524A | Rotary vacuum precoat filter | Performing Operations; Transporting | 11 | Expired |
| US4313919A | Process for removing fine solids from phosphoric acid by vacuum filtration | Chemistry; Metallurgy | 6 | Expired |
| US4147757A | Method for producing ammonium phosphate which is substantially free of arsenic | Chemistry; Metallurgy | 2 | Expired |
| US4853201A | Recovery of P.sub.2 O.sub.5 values from phosphoric acid hemihydrate crystals | Chemistry; Metallurgy | 0 | Expired |
| US10662500B2 | Process for the recovery of precious metal from petrochemical process residues | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.