Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11692355 | External vents | Mark T. MacLean-Blevins | 2023-07-04 |
| D934409 | Roof vent | Mark T. MacLean-Blevins | 2021-10-26 |
| 10927550 | External vents | Mark T. MacLean-Blevins | 2021-02-23 |
| 9228689 | System and method for in-place vent pipe restoration | Mark T. MacLean-Blevins | 2016-01-05 |
| 8984822 | Roof-penetrating pipe sealing | Mark T. MacLean-Blevins | 2015-03-24 |
| 8898961 | Metal seam mount | — | 2014-12-02 |
| 8484914 | Sealing system | — | 2013-07-16 |
| D662230 | Through roof fitting | — | 2012-06-19 |
| 6266929 | Snow guard | — | 2001-07-31 |
| 6102794 | Roof vent | — | 2000-08-15 |
| D418403 | Snow guard | — | 2000-01-04 |
| 5647178 | Through-roof fittings | — | 1997-07-15 |
| D372421 | Heavy duty snow stop | — | 1996-08-06 |
| 5522185 | Snow stop | — | 1996-06-04 |
| D364338 | Surface mount snow guard | — | 1995-11-21 |
| D351989 | Snow stop | Lawrence W. Boehly | 1994-11-01 |
| 5282340 | Snow brake | Lawrence W. Boehly | 1994-02-01 |