Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6281475 | Pipe stand instrument heater and mounting system | Bryan J. Campbell, Roy E. Barth, W. Gregory Huff, Ronald W. Zaborowski, Charles M. Bonorden | 2001-08-28 |
| 6196297 | Pipe stand instrument heater and mounting system | Bryan J. Campbell, Roy E. Barth, W. Gregory Huff, Ronald W. Zaborowski, Charles M. Bonorden | 2001-03-06 |
| 6131617 | Safety-enhanced heat tracing | R. Knox Pitzer, Roy E. Barth | 2000-10-17 |
| 5897732 | Method and apparatus for the manufacture of a linear wrap, thermally insulated tube | Donald W. Hirsch | 1999-04-27 |