Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8347581 | Adjustable masonry anchor assembly for use with insulating concrete form systems | Henry E. Pfeiffer | 2013-01-08 |
| 7437858 | Welded wire reinforcement for modular concrete forms | Henry E. Pfeiffer, Karen Ann Bexten, Maher K. Tadros | 2008-10-21 |