Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8839564 | Trailer door seal | Myron S. Worley, Katherine A. Bergfeld | 2014-09-23 |
| 8118519 | Grout and lifting tube | Chad E. Csadenyi | 2012-02-21 |
| 7827665 | Gasket and mandrel assembly for pipe joints | Timothy A. Andrews, Michael R. Miller, James W. Skinner | 2010-11-09 |
| 7677603 | Seal assembly for pipe-to-structure connections | — | 2010-03-16 |
| 7263746 | Expansion ring assembly with removable drive mechanism | Ronald W. Neuhaus | 2007-09-04 |
| 7252293 | Two-part gasket for pipe-to-pipe connections | — | 2007-08-07 |