Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5497097 | Apparatus for detecting a connection between adjacent panels of a curtain wall | Walter W. Walling | 1996-03-05 |
| 5125455 | Primary cementing | Kirk L. Harris, Edward F. Vinson, Daniel L. Bour, Philip C. Freyaldenhoven, Lindsey Lee | 1992-06-30 |