Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10040903 | Polymer polyol quality | Rick L. Adkins, Edward P. Browne | 2018-08-07 |
| 8011031 | Quiet, low water volume toilet | Charles O. Campbell | 2011-09-06 |
| 5228598 | Dilution apparatus with full opened or fully closed valve | Alexander Bally, Allen E. Brandenburg, Charles Kraeuter, Robert Petit, James M. Rubenstein +1 more | 1993-07-20 |
| 4708282 | Welding alloy and method of making and using the same | John L. Johnsen, Jack H. Devletian, Donald G. Spring | 1987-11-24 |
| 4444335 | Delivery of adjustable quantities of materials | Roy A. Rosen | 1984-04-24 |
| RE31541 | Webbed harnessing device | — | 1984-03-27 |
| 4436902 | Removal of contaminants in liquid purification | Franklin T. Barber | 1984-03-13 |
| 4429207 | Method for welding railroad rails and means therefor | Jack H. Devletian, Robert B. Turpin, Milton R. Scholl | 1984-01-31 |
| 4406743 | Fractionation column for reclaiming used lubricating oil | Donald K. MacQueen | 1983-09-27 |
| 4381992 | Reclaiming used lubricating oil | Donald K. MacQueen | 1983-05-03 |