Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5683476 | Flow line venturi scrubber | — | 1997-11-04 |
| 5443657 | Power source using a photovoltaic array and self-luminous microspheres | Howard Christopher Rivenburg, Paul Bilhuber, Michael R. Arneson | 1995-08-22 |
| 5119991 | Self-cleaning nozzle and associated method | — | 1992-06-09 |
| 4494894 | Extensible brattice support system for mine face ventilation | John C. Lascola, Robert G. Behers | 1985-01-22 |
| 4282802 | Slideboard device for underground mine face ventilation | John C. Lascola | 1981-08-11 |
| 4266829 | Combined rotating bed scrubber and water eliminator | — | 1981-05-12 |
| 4235163 | Mine face ventilation system | — | 1980-11-25 |