Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867015 | Rock drilling bit and a method of producing the same | Robert F. Kane, Pual S. Kuzniar | 1989-09-19 |
| 4761191 | Method of forming closely sized openings | George O. Keller, Robert F. Kane | 1988-08-02 |
| 4756373 | Rock drilling bit and a method of producing the same | Robert F. Kane, Paul S. Kuzniar | 1988-07-12 |