Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6018859 | Method of forming seamed metal tube | John J. Borzym, Theodore H. Krengel, Curtis R. Brown, Edward Wiesenthal, III | 2000-02-01 |
| 5915421 | Method of forming seamed metal tube | John J. Borzym, Theodore H. Krengel, Curtis R. Brown, Edward Wiesenthal, III | 1999-06-29 |
| 5732874 | Method of forming seamed metal tube | John J. Borzym, Theodore H. Krengel, Curtis R. Brown, Edward Wiesenthal, III | 1998-03-31 |
| RE35378 | Method of forming seamed metal tube | Theodore H. Krengel, John J. Borzym | 1996-11-19 |
| 5344062 | Method of forming seamed metal tube | Theodore H. Krengel, John J. Borzym | 1994-09-06 |
| 4915535 | Connector | — | 1990-04-10 |
| 4611480 | Metallic wall having knockouts and method of forming | — | 1986-09-16 |
| 4600179 | Module for forming a barrier and method of assembly | — | 1986-07-15 |