Issued Patents All Time
Showing 25 most recent of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5345623 | Shower curtain deflector | — | 1994-09-13 |
| 5315762 | Grass trimming shears | — | 1994-05-31 |
| 5290013 | Spading fork | — | 1994-03-01 |
| 5094435 | Flange alignment tool and method | Warren B. Depperman, William J. Westerman | 1992-03-10 |
| 5040754 | Refuse collector | — | 1991-08-20 |
| 4930825 | Apparatus for uprooting plants | — | 1990-06-05 |
| 4726575 | Apparatus for aligning pipes | — | 1988-02-23 |
| 4712779 | Welding fixture | — | 1987-12-15 |
| 4708279 | Internal alignment clamp | — | 1987-11-24 |
| 4666138 | External reforming pipe clamp | — | 1987-05-19 |
| 4623085 | Pipe clamp | — | 1986-11-18 |
| 4586647 | Pipe clamps | — | 1986-05-06 |
| 4553305 | Pipefitter's scribing and spacing tool | — | 1985-11-19 |
| 4497115 | Welder's mismatch gauge | — | 1985-02-05 |
| 4497119 | Pipefitter's protractor | — | 1985-02-05 |
| 4492015 | Apparatus for use in welding | — | 1985-01-08 |
| 4483059 | Clamping and spacing tool | — | 1984-11-20 |
| 4463938 | Internal clamping of pipes | — | 1984-08-07 |
| 4440383 | Pipe cutting apparatus | — | 1984-04-03 |
| 4431173 | Welders plate alignment tool | — | 1984-02-14 |
| 4392641 | Alignment tool | — | 1983-07-12 |
| 4388765 | Pipefitters square holder | — | 1983-06-21 |
| 4378937 | Pipe aligning tool | — | 1983-04-05 |
| 4356615 | Apparatus and methods for use in welding | — | 1982-11-02 |
| 4344215 | Pipefitter's tool | — | 1982-08-17 |