Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5335185 | Automatic level control system and method | Charles E. Fowler | 1994-08-02 |
| 5027267 | Automatic mixture control apparatus and method | Leonard R. Case, James E. Broaddus | 1991-06-25 |
| 5023819 | Linear shaped filter | — | 1991-06-11 |
| 4850423 | Air preheater water jet cleaning apparatus | John Timothy Allen, Don M. Roberts, Randall B. Cogbill | 1989-07-25 |
| 4751648 | Local area network data transfer system | Leslie R. Sears, III, Stephen F. Crain, Edward L. Woodall, Michael L. Green, Don M. Roberts +2 more | 1988-06-14 |