Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4641529 | Pipeline inspection device using ultrasonic apparatus for corrosion pit detection | Helmut F. Wagerer, Lev Spevak | 1987-02-10 |
| 4633620 | System for processing of steel billets or the like to remove surface defects | Helmut F. Wagerer | 1987-01-06 |
| 4598250 | Corrosion sensor device including side-by-side bar magnets surrounded by a coil | Helmut F. Wagerer | 1986-07-01 |
| 4502253 | Surface treating and testing apparatus | Helmut F. Wagerer | 1985-03-05 |
| 4434427 | Atmosphere control for photographic pipeline inspection | Frederick Clarke, Edward F. Schaefer | 1984-02-28 |
| 4372658 | Pipeline inspection apparatus | Donald T. O'Connor, John J. Flaherty, Edward F. Schaefer | 1983-02-08 |
| 4363545 | Photographic pipeline inspection apparatus including an optical port wiper | Edward F. Schaefer, Lawrence R. Lozynski | 1982-12-14 |
| 4290016 | Method and apparatus for establishing magnetization levels for magnetic particle testing or the like | — | 1981-09-15 |
| 4249810 | Pipeline inspection apparatus | Donald T. O'Connor, John J. Flaherty, Edward F. Schaefer | 1981-02-10 |