Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6537402 | Membrane welding apparatus including a visual seam marker | Dave Scott | 2003-03-25 |
| 4869766 | Method for manufacturing large diameter plastic pipe | William R. Laney, Donald H. Shell | 1989-09-26 |
| 4647074 | Flexible conduit system | Helmut P. Fochler | 1987-03-03 |
| D286768 | Electrical outlet box | Richard J. Borsh, Robert W. Ripley | 1986-11-18 |
| 4578528 | Electrical outlet box and method of manufacturing same | Richard J. Borsh, Robert W. Ripley | 1986-03-25 |
| 4524999 | Flexible conduit system | Helmut P. Fochler | 1985-06-25 |
| 4495970 | Large diameter plastic pipe | William R. Laney, Donald H. Shell | 1985-01-29 |
| RE31674 | Floor or bench mounted conduit cutting device | Glenn A. Wozniak, Robert R. Rady | 1984-09-18 |
| 4470622 | Flexible conduit system | Helmut P. Fochler | 1984-09-11 |
| 4443031 | Connector fitting for connecting corrugated conduit sections | Richard J. Borsh, Steven W. Neff | 1984-04-17 |
| 4440425 | Flexible conduit system | Helmut P. Fochler | 1984-04-03 |
| 4364292 | Floor or bench mounted conduit cutting device | Glenn A. Wozniak, Robert R. Rady | 1982-12-21 |
| 4309855 | Wall drainage system | Helmut P. Fochler | 1982-01-12 |
| 4304958 | Electrical outlet box | Steve W. Neff | 1981-12-08 |
| 4300425 | Floor or bench mounted conduit cutting device | Glenn A. Wozniak, Robert R. Rady | 1981-11-17 |
| 4290572 | Pipe clamp device | — | 1981-09-22 |
| 4248459 | Flexible conduit system | Helmut P. Fochler | 1981-02-03 |
| 4225103 | Pipe clamp device | — | 1980-09-30 |
| 4214668 | Electrical box and mounting bracket assembly | Steve W. Neff | 1980-07-29 |
| 4209661 | Conductor clamping device | Glenn A. Wozniak | 1980-06-24 |