Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5093506 | Removal of acidic contaminants from tertiary butyl hydroperoxide | Edward T. Marquis, John R. Sanderson | 1992-03-03 |
| 5017135 | Trap and separator for denial vacuum systems | — | 1991-05-21 |
| 4992566 | Recovery of tertiary butyl hydroperoxide and tertiary butyl alcohol | Edward T. Marquis, Kenneth P. Keating, John R. Sanderson | 1991-02-12 |
| 4977285 | Recovery of tertiary butyl hydroperoxide and tertiary butyl alcohol | Edward T. Marquis, Kenneth P. Keating, John R. Sanderson | 1990-12-11 |
| 4971661 | Purification of propylene oxide using an aqueous acetone extractive distillatin agent | Kenneth P. Keating, William A. Smith, Robert M. Steinberg | 1990-11-20 |
| 4963094 | Vacuum controller and filter assembly for dental vacuum system | — | 1990-10-16 |
| 4900850 | Recovery of purified ditertiary butyl peroxide | John R. Sanderson | 1990-02-13 |
| 4810809 | Ditertiary butyl peroxide recovery | John R. Sanderson, William A. Smith, Edward T. Marquis | 1989-03-07 |
| 4704482 | Catalytic purification of tertiary butyl alcohol | John R. Sanderson, Edward T. Marquis, Terry L. Renken | 1987-11-03 |
| 4269265 | Tubular heat exchanger with turbulator | Richard A. Bretl | 1981-05-26 |