Issued Patents All Time
Showing 25 most recent of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8574099 | Par one | — | 2013-11-05 |
| 8534201 | Multiple track railroad system | — | 2013-09-17 |
| 7827919 | Multiple track railroad system | — | 2010-11-09 |
| 7677991 | Par one | — | 2010-03-16 |
| 7540803 | Ventilating cap for the ridge of a roof | — | 2009-06-02 |
| 7485034 | Vent for tile roofs | — | 2009-02-03 |
| 7318777 | Par one | — | 2008-01-15 |
| 6598356 | Insulated roofing system having a form-fitting compressible seal and ventilation | — | 2003-07-29 |
| 6589113 | Vent closure member with lift spacer | — | 2003-07-08 |
| 6558251 | Roof ventilator with movable member to prevent entry of moisture | — | 2003-05-06 |
| D465839 | Roof vent having a stepped side | — | 2002-11-19 |
| 6213868 | Roof ventilator with movable member to prevent entry of moisture | — | 2001-04-10 |
| 6039646 | Ventilating cap for covering a vent opening, transport container, and method for their manufacture | — | 2000-03-21 |
| 5921863 | Roof ventilating device | — | 1999-07-13 |
| 5830059 | Ventilating cap for the ridge of a roof | — | 1998-11-03 |
| 5803805 | Structure ventilating device | — | 1998-09-08 |
| 5704834 | Moisture resistant roof vent | — | 1998-01-06 |
| 5603657 | Ventilating device | — | 1997-02-18 |
| 5542882 | Roof ventilating cap | — | 1996-08-06 |
| 5439417 | Roof ventilating cap | — | 1995-08-08 |
| 5427571 | Ventilated cap system for the ridge of a roof | — | 1995-06-27 |
| 5339582 | Roof vent | — | 1994-08-23 |
| 5328407 | Roof ridge vent with tubular baffles | — | 1994-07-12 |
| 5207033 | Evaporation tray | — | 1993-05-04 |
| 5094049 | Blister vent | — | 1992-03-10 |