Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12385579 | Method and apparatus for plastic duct bank manufacture | — | 2025-08-12 |
| 10816109 | Method and apparatus for plastic duct bank manufacture | — | 2020-10-27 |
| D848378 | Conduit section | — | 2019-05-14 |
| 9957709 | Truss hinge with variations in angular settings | James Kempf | 2018-05-01 |
| 9732511 | Truss hinge with variations in angular settings | James Kempf | 2017-08-15 |
| 9719612 | Method and apparatus for plastic duct bank manufacture | — | 2017-08-01 |
| 9453359 | Truss hinge with angular variability | James Kempf | 2016-09-27 |
| 9422972 | Truss hinge with variations in angular settings | James Kempf | 2016-08-23 |
| 9410642 | Method and apparatus for plastic duct bank manufacture | — | 2016-08-09 |
| 8850774 | Truss hinge for a stage truss | James Kempf | 2014-10-07 |
| 8757641 | Collapsible dolly for use with a truss | — | 2014-06-24 |
| 8720152 | Truss hinge with angular variability | James Kempf | 2014-05-13 |
| 8517397 | Collapsible dolly for use with a truss | — | 2013-08-27 |
| D680966 | Asymmetrical oversized conduit section | — | 2013-04-30 |
| D680967 | Asymmetrical oversized conduit section | — | 2013-04-30 |
| D680968 | Asymmetrical oversized conduit section | — | 2013-04-30 |
| D680969 | Asymmetrical oversized conduit section | — | 2013-04-30 |
| 7426694 | System and method for customizing design of settings management user interface systems used to configure settings for intelligent electronic devices | Eric A. Sagen, Barry A. Klas, Jeffrey S. McDougle | 2008-09-16 |