Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4722759 | Apparatus for fabricating drip irrigation tape | James Roberts | 1988-02-02 |
| 4566496 | Tubular plastics objects | Stanley W. O. Menzel, Gilbert W. Vance | 1986-01-28 |
| 4438643 | Machine for forming tubes from a strip | Stanley W. O. Menzel, Gilbert W. Vance | 1984-03-27 |
| 4337564 | Machine and method for forming tubes from a strip | Stanley W. O. Menzel, Gilbert W. Vance | 1982-07-06 |
| 4269357 | Continuous drip irrigation tube | S. W. O. Menzel, Donald E. Mock, Gilbert W. Vance, Dale P. Zauner | 1981-05-26 |
| 4254075 | Method for forming holes in a member | S. W. O. Menzel | 1981-03-03 |