Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5829241 | Uniform alternate ply-twisted yarn | Steven K. Shibata | 1998-11-03 |
| 5644909 | Method and apparatus for making alternate twist plied yarn and product | Warren Francis Knoff, Peter Popper, Steven K. Shibata, Robert Edward Taylor, Paul W. Yngve | 1997-07-08 |
| 5577376 | Process and apparatus for making uniform alternate ply-twisted yarn and product | Steven K. Shibata | 1996-11-26 |
| 5557915 | Method and apparatus for making alternate twist plied yarn and product | Warren Francis Knoff, Peter Popper, Steven K. Shibata, Robert Edward Taylor, Paul W. Yngve | 1996-09-24 |