Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11946376 | Flood protection for underground air vents | — | 2024-04-02 |
| 10619317 | Flood barrier | — | 2020-04-14 |
| 10619318 | Flood barrier | — | 2020-04-14 |
| 10619884 | Security for grate covering underground air vents | Nick Alan Eastman | 2020-04-14 |
| 10435910 | Flood protection for underground air vents | Nick A. Eastman | 2019-10-08 |
| 10435906 | Flood protection for underground air vents | Nick A. Eastman | 2019-10-08 |
| 10435907 | Flood protection for underground air vents | Nick A. Eastman | 2019-10-08 |
| 10435908 | Flood protection for underground air vents | Nick A. Eastman | 2019-10-08 |
| 10435909 | Flood protection for underground air vents | Nick A. Eastman | 2019-10-08 |
| 10202772 | Self-actuating flood guard | — | 2019-02-12 |
| 10106945 | Flood protection for underground air vents | — | 2018-10-23 |
| 10072436 | Self-actuating flood guard | — | 2018-09-11 |
| 9752342 | Flood protection for underground air vents | — | 2017-09-05 |
| 9458590 | Self-actuating floodwater barrier | — | 2016-10-04 |
| 9458588 | Flood guard barrier lifting system | — | 2016-10-04 |
| 9279224 | Self-actuating shoreline flood guard | — | 2016-03-08 |
| 8511939 | Self-actuating storm surge barrier | — | 2013-08-20 |
| 8033753 | Automatic flooding protection for underground ventilation ducts | — | 2011-10-11 |
| 7905068 | Protective cap for coupler bar | — | 2011-03-15 |
| 7101114 | Storm drain system and method | — | 2006-09-05 |
| 6837017 | Apparatus for placing rebar in continuously reinforced concrete paving | Robert M. Hardy | 2005-01-04 |
| 6623209 | Automatic flood gate | — | 2003-09-23 |
| 6112494 | System for affixing rebar lattice to receive concrete | Robert M. Hardy | 2000-09-05 |
| 5893252 | System for affixing rebar lattice to receive concrete | Robert M. Hardy | 1999-04-13 |
| 5785044 | Fluid sample receptacle | James W. Meador, Thomas L. Kraft, David P. O'Bryan, John F. Berry, Thomas G. Miller +4 more | 1998-07-28 |