Issued Patents All Time
Showing 51–64 of 64 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5797332 | Closed loop gasification drying system | John R. Petersen, David Caffey | 1998-08-25 |
| 5649820 | Flare burner | John R. Petersen, Robert C. Phillips, David Caffey, Jeffrey T. Parker | 1997-07-22 |
| 4952137 | Flare gas burner | Robert E. Schwartz, Roger K. Noble | 1990-08-28 |
| 4922838 | Thermal processor for solid and fluid waste materials | Richard Holman | 1990-05-08 |
| 4901652 | Accumulating and conveying incinerator ash | Dale W. Pressnall, John R. Petersen | 1990-02-20 |
| 4900244 | Gas flaring method and apparatus | Roger K. Noble, Dale W. Pressnall | 1990-02-13 |
| 4798150 | Apparatus for handling ash | Dale W. Pressnall, Robert E. Schwartz | 1989-01-17 |
| 4788918 | Solids incineration process and system | — | 1988-12-06 |
| 4652232 | Apparatus and method to add kinetic energy to a low pressure waste gas flare burner | Robert E. Schwartz | 1987-03-24 |
| 4637793 | Flare gas burner | Robert E. Schwartz, Roger K. Noble | 1987-01-20 |
| 4579521 | Flare gas burner | Robert E. Schwartz, Roger K. Noble | 1986-04-01 |
| 4573906 | Shielded smoke suppressing flare gas burner | Robert E. Schwartz, Roger K. Noble | 1986-03-04 |
| 4492558 | Smokeless waste gas burning using low pressure staged steam | Robert E. Schwartz | 1985-01-08 |
| 4457696 | Large capacity air-powered smokeless flare | Robert E. Schwartz, Roger K. Noble | 1984-07-03 |