Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7024826 | Device for impeding a route of travel of crawling arthropods | Ernest H. Roberts, Philip G. Koehler | 2006-04-11 |
| 6912815 | Methods and devices for impeding crawling arthropods from entering enclosed and semi-enclosed spaces | Philip G. Koehler, Ernest H. Roberts | 2005-07-05 |
| 6837008 | Device for impeding a route of travel of crawling arthropods | Ernest H. Roberts, Philip G. Koehler | 2005-01-04 |
| 5106270 | Air-cooled air compressor | Walter E. Goettel, Daniel Wagner, Dale A. Chovan | 1992-04-21 |
| 4988510 | Insect control system | Richard J. Brenner, Roger R. Pierce, Marvin H. Hult | 1991-01-29 |
| 4857532 | Cockroach growth regulating composition and method | Philip G. Koehler, Richard S. Kramer | 1989-08-15 |