Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842465 | Insulation hanger with locking device | Eugene P. Schaeffer, Kevin L. Bernd, David A. Higton | 1989-06-27 |
| 4763458 | Insulation system and method and apparatus for retaining same | Harold C. Wilkinson, Kevin Wall | 1988-08-16 |
| 4705424 | Stud system for securing abrasion resistant members | Robert J. Raycher | 1987-11-10 |
| 4660343 | Stud weldable refractory anchor | Robert J. Raycher, Kevin L. Bernd | 1987-04-28 |
| 4478022 | Insulation system and method and apparatus for retaining same | Harold C. Wilkinson, Kevin Wall | 1984-10-23 |
| 4456808 | Microprocessor control of welding apparatus | Harold C. Wilkinson, Charles E. Gum, Rodney C. Howe, Dean P. Macinskas, Robert J. Raycher +2 more | 1984-06-26 |
| 4424434 | Boiler tube wearbar, stud and arc shield | Eugene P. Schaeffer | 1984-01-03 |
| 4410783 | Boiler tube wearbar, stud welder and arc shield | Eugene P. Schaeffer | 1983-10-18 |