Pfaff; Ryan
Patent Applications and Registrations
Patent applications and USPTO patent grants for Pfaff; Ryan.The latest application filed is for "switch arrangements for powered doors".
- Pfaff; Ryan - Dubuque IA
| Patent | Date |
|---|---|
| Switch Arrangements For Powered Doors App 20210246704 - Hardison; Carl David ; et al. | 2021-08-12 |
| Rolling windbars for roll-up doors Grant 9,556,672 - Pfaff , et al. January 31, 2 | 2017-01-31 |
| Powered safety curtains Grant 9,388,634 - Hardison, III , et al. July 12, 2 | 2016-07-12 |
| Rolling Windbars for Roll-Up Doors App 20160115731 - Pfaff; Ryan ; et al. | 2016-04-28 |
| Systems and Methods for Aligning Roll-Up Door Curtains App 20160108666 - Lewan; Derek ; et al. | 2016-04-21 |
| Powered safety curtains Grant 9,309,717 - Hardison, III , et al. April 12, 2 | 2016-04-12 |
| Powered Safety Curtains App 20130112358 - Hardison, III; Carl David ; et al. | 2013-05-09 |
| Powered Safety Curtains App 20130112354 - Hardison, III; Carl David ; et al. | 2013-05-09 |
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