Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11466422 | Adjustable single stage panel system and method | — | 2022-10-11 |
| 9702110 | Panel connector and method of use | William K. Hilfiker, William B. Hilfiker | 2017-07-11 |
| 9011048 | Method for constructing a mechanically stabilized earthen embankment using semi-extensible steel soil reinforcements | William K. Hilfiker, William B. Hilfiker | 2015-04-21 |
| 8079782 | Semi-extensible steel soil reinforcements for mechanically stabilized embankments | William K. Hilfiker, William B. Hilfiker | 2011-12-20 |
| RE42680 | Compressible welded wire wall for retaining earthen formations | William B. Hilfiker | 2011-09-06 |
| 7281882 | Retaining wall having polymeric reinforcing mats | William K. Hilfiker | 2007-10-16 |
| 7073983 | Earthen retaining wall having flat soil reinforcing mats which may be variably spaced | William K. Hilfiker | 2006-07-11 |
| 7033118 | Compressible welded wire retaining wall and rock face for earthen formations | — | 2006-04-25 |
| 6857823 | Earthen retaining wall having flat soil reinforcing mats which may be variably spaced | William K. Hilfiker | 2005-02-22 |
| 6357970 | Compressible welded wire wall for retaining earthen formations | William B. Hilfiker | 2002-03-19 |
| 5647695 | Soil filled wall | William B. Hilfiker | 1997-07-15 |
| 4505621 | Wire retaining wall apparatus and method for earthen formations | Arthur L. Hilfiker | 1985-03-19 |