Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7479176 | Sequential adsorption desiccant dryer system | Robert R. Crawford | 2009-01-20 |
| 7104743 | Vacuum receiver with positive dump valve control | Robert R. Crawford, Leonard Paquette, William Goldfarb | 2006-09-12 |
| 6336278 | Method and system for controlling airflow in a multiple bed desiccant drying system | Robert R. Crawford | 2002-01-08 |
| 5926969 | Method and apparatus for regenerating a moist absorption medium | Robert R. Crawford, Christopher J. Selley | 1999-07-27 |
| 5768897 | Air drying apparatus and method with high ratio gas flow to absorber weight | Robert R. Crawford, Roderick W. Lyman | 1998-06-23 |
| 5371920 | Safety system of roll guards | — | 1994-12-13 |
| 5140516 | Method and system for rapidly changing the source of material supplied to a destination | — | 1992-08-18 |
| 5019994 | Method and apparatus for drying articles in a continuous feed process | — | 1991-05-28 |