Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5989509 | Method for extracting antimony from elemental phosphorous | Louis T. Gunkel, John Crosby, Paul Beck | 1999-11-23 |
| 5368741 | Treatment of aqueous phosphorus wastes | Jay R. Brummer, Paul Beck | 1994-11-29 |
| 5002745 | Method of separating and recovering phosphorus from phosphorus sludge | Alan S. Michaels, Wayne Hun LEE | 1991-03-26 |
| 4990179 | Process for increasing the life of carbon crucibles in plasma furnaces | Richard A. Mohr | 1991-02-05 |
| 4806325 | Process for recovering elemental phosphorus and a metal concentrate from ferrophos | Richard A. Mohr | 1989-02-21 |
| 4289739 | Method of producing crystalline sodium aluminum phosphate | John S. C. Chiang, Joseph M. Ilardi | 1981-09-15 |
| 4185079 | Removal of phosphine contaminant from carbon monoxide gas mixtures | David Goldstein, John Walden | 1980-01-22 |