Issued Patents All Time
Showing 25 most recent of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE37842 | Regenerating zeolitic cracking catalyst | Brent J. Bertus, John S. Roberts, Arnold M. Schaffer | 2002-09-17 |
| RE37789 | Regenerating zeolitic cracking catalyst | Brent J. Bertus, John S. Roberts, Arnold M. Schaffer | 2002-07-16 |
| 5807802 | Stable aqueous dispersions of dibutyltin oxide | RoseMarie E. Stewart, Oliver Schumacher, Ulrich Stewen | 1998-09-15 |
| 5358630 | Regenerating zeolitic cracking catalyst | Brent J. Bertus, John S. Roberts, Arnold M. Schaffer | 1994-10-25 |
| 5053530 | Preparation of isethionic acid with organic acid | John S. Roberts | 1991-10-01 |
| 4990656 | Polyamine substituted dithiocarbamate and process for producing the same | Clarence R. Bresson | 1991-02-05 |
| 4857179 | Ore flotation and mineral flotation agents for use therein | Kenneth B. Kimble, Gary D. Macdonell | 1989-08-15 |
| 4806234 | Ore flotation | Clarence R. Bresson | 1989-02-21 |
| 4747940 | Ore flotation and tri-alkali metal-di(carboxyalkyl) dithiocarbamate and triammonium-di(carboxyalkyl) dithiocarbamate flotation agents for use therein | Kenneth B. Kimble, Clarence R. Bresson | 1988-05-31 |
| 4721813 | Method for the oxidation of mercaptoalkanols to dithiodiglycols | John S. Roberts | 1988-01-26 |
| 4702821 | Ore flotation and di-alkali metal-di(carboxyalkyl)dithiocarbamate and diammonium-di(carboxyalkyl)dithiocarbamate flotation agents for use therein | Clarence R. Bresson | 1987-10-27 |
| 4650568 | Trithiocarbonates as depressants in ore flotation | Kenneth B. Kimble, Clarence R. Bresson | 1987-03-17 |
| 4637833 | Inhibiting corrosion: benzylsulfinylacetic acid or benzylsulfonylacetic acid | Merlin R. Lindstrom | 1987-01-20 |
| 4619760 | Ore flotation agent from 2-mercaptobenzimidazole and flotation processes therewith | Kenneth B. Kimble, Clarence R. Bresson | 1986-10-28 |
| 4595538 | Tri-alkali metal-di(carboxyalkyl)dithiocarbamate and triammonium-di(carboxyalkyl)dithiocarbamate flotation agents | Kenneth B. Kimble, Clarence R. Bresson | 1986-06-17 |
| 4559153 | Metal working lubricant | Bernard A. Baldwin | 1985-12-17 |
| 4554068 | Ore flotation and flotation agents for use therein | Kenneth B. Kimble, Clarence R. Bresson | 1985-11-19 |
| 4554108 | Alkali carboxyalkyl dithiocarbamates and use as ore flotation reagents | Kenneth B. Kimble, Clarence R. Bresson | 1985-11-19 |
| 4535066 | Passivating metals on cracking catalysts | Brent J. Bertus, John S. Roberts, Dwight L. McKay, Lyle E. Fenska | 1985-08-13 |
| 4533467 | Ore flotation and flotation agents for use therein | Kenneth B. Kimble, Clarence R. Bresson | 1985-08-06 |
| 4514293 | Ore flotation and flotation agents for use therein | Clarence R. Bresson | 1985-04-30 |
| 4495200 | Process for the control of sulfate-reducing bacteria | Merlin R. Lindstrom, Leslie J. Henshaw, James B. Clark | 1985-01-22 |
| 4459366 | Passivating metals on cracking catalysts | Brent J. Bertus, John S. Roberts, Dwight L. McKay, Lyle E. Fenska | 1984-07-10 |
| 4447246 | Diesel fuel | Clifford E. Smith, Rector P. Louthan, Howard F. Efner | 1984-05-08 |
| 4394324 | Stable antimony organophosphorodithioates | Brent J. Bertus, John S. Roberts | 1983-07-19 |