Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11291937 | Water filter system | Christopher A. Kruckenberg, Jeffrey A. Spindler | 2022-04-05 |
| 11247156 | Water filter system | Christopher A. Kruckenberg, Jeffrey A. Spindler | 2022-02-15 |
| 10653985 | Water filter system | Christopher A. Kruckenberg, Jeffrey A. Spindler | 2020-05-19 |
| 10022658 | Water filter system | Christopher A. Kruckenberg, Jeffrey A. Spindler | 2018-07-17 |
| 10010820 | Water filter system | Christopher A. Kruckenberg, Jeffrey A. Spindler | 2018-07-03 |
| 9937451 | Filter unit | Christopher A. Kruckenberg, Jeffrey A. Spindler | 2018-04-10 |
| 9533243 | Electronic interface for water filtration system | Christopher A. Kruckenberg, Peter J. Richmond, Jeffrey A. Spindler | 2017-01-03 |
| 8950052 | Method of installing a filter unit | Christopher A. Kruckenberg, Peter J. Richmond, Jeffrey A. Spindler | 2015-02-10 |
| 8845896 | Water filter system | Christopher A. Kruckenberg, Jeffrey A. Spindler | 2014-09-30 |
| 8591736 | Water filter unit | Christopher A. Kruckenberg, Jeffrey A. Spindler | 2013-11-26 |
| 8580109 | Electronic interface for water filter system | Christopher A. Kruckenberg, Peter J. Richmond, Jeffrey A. Spindler | 2013-11-12 |
| 8413818 | Filter unit | Christopher A. Kruckenberg, Peter J. Richmond, Jeffrey A. Spindler | 2013-04-09 |
| 8356716 | Filter unit | Christopher A. Kruckenberg, Peter J. Richmond, Jeffrey A. Spindler | 2013-01-22 |
| 6341445 | Landscape barrier device with watering system | — | 2002-01-29 |
| 6133551 | Kiln | — | 2000-10-17 |
| 5638257 | Combination keyboard and cover for a handheld computer | Rajendra Kumar | 1997-06-10 |
| 5548477 | Combination keyboard and cover for a handheld computer | Rajendra Kumar | 1996-08-20 |
| D350336 | Grip held data entry computer having an automatic identification reader and modified display | Rajendra Kumar | 1994-09-06 |
| D350334 | Grip held data entry computer having an automatic identification reader | Rajendra Kumar | 1994-09-06 |
| D350335 | Grip held data entry computer having an automatic identification reader | Rajendra Kumar | 1994-09-06 |
| D350118 | Grip held data entry computer having an automatic identification reader and modified display | Rajendra Kumar | 1994-08-30 |
| D350119 | Portable data entry terminal with display and scanner module | Rajendra Kumar | 1994-08-30 |
| D349604 | Grip held data entry computer having a plurality of automatic identification readers | Rajendra Kumar | 1994-08-16 |
| D349692 | Grip held data entry computer having a plurality of automatic identification readers and modified display | Rajendra Kumar | 1994-08-16 |
| D348896 | Portable point of sale terminal | Rajendra Kumar | 1994-07-19 |