Issued Patents All Time
Showing 26–50 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8450877 | Communication across an inductive link with a dynamic load | David W. Baarman, Joshua K. Schwannecke, Matthew J. Norconk | 2013-05-28 |
| 8373386 | Wireless charging system with device power compliance | David W. Baarman | 2013-02-12 |
| 8338990 | Inductive power supply system with multiple coil primary | David W. Baarman, Joshua K. Schwannecke | 2012-12-25 |
| 8259428 | Input protection circuit | David W. Baarman, Andrew C. Zeik, Dale R. Liff, Mark A. Blaha | 2012-09-04 |
| 8234189 | Metered delivery of wireless power | Joshua B. Taylor, David W. Baarman | 2012-07-31 |
| 8222827 | Inductively coupled ballast circuit | Roy W. Kuennen, David W. Baarman, Ronald C. Markham, Dennis J. Denen | 2012-07-17 |
| 8129864 | Inductive power supply with duty cycle control | David W. Baarman, Joshua K. Schwannecke, Thomas Jay Leppien, Kenneth Michael Burns | 2012-03-06 |
| 8097984 | Inductive power supply with device identification | David W. Baarman | 2012-01-17 |
| 8069100 | Metered delivery of wireless power | Joshua B. Taylor, David W. Baarman | 2011-11-29 |
| 7989986 | Inductive power supply with device identification | David W. Baarman | 2011-08-02 |
| 7821208 | Inductively-powered gas discharge lamp circuit | David W. Baarman, Ronald L. Stoddard, Joshua K. Schwannecke | 2010-10-26 |
| 7592753 | Inductively-powered gas discharge lamp circuit | David W. Baarman | 2009-09-22 |
| 7385357 | Inductively coupled ballast circuit | Roy W. Kuennen, David W. Baarman, Ronald C. Markham, Dennis J. Dennen | 2008-06-10 |
| 7252763 | Point-of-use water treatment system | Roy W. Kuennen, Eric K. Bartkus, David W. Baarman, Kenneth E. Conrad, Terry L. Lautzenheiser +1 more | 2007-08-07 |
| 7180248 | Inductively coupled ballast circuit | Roy W. Kuennen, David W. Baarman, Ronald C. Markham, Dennis J. Denen | 2007-02-20 |
| 7170200 | Starter assembly for a gas discharge lamp | David W. Baarman, Roy W. Kuennen | 2007-01-30 |
| 7145342 | System and method for automated filament testing of gas discharge lamps | Ernest T. Wendt, Karlis Vecziedins | 2006-12-05 |
| 6825620 | Inductively coupled ballast circuit | Roy W. Kuennen, David W. Baarman, Ronald C. Markham, Dennis J. Denen | 2004-11-30 |
| 6806649 | Starter assembly for a gas discharge lamp | David W. Baarman, Roy W. Kuennen | 2004-10-19 |
| 6793817 | Lamp assembly for point-of-use water treatment system | Roy W. Kuennen, Eric K. Bartkus, David W. Baarman, Kenneth E. Conrad, Terry L. Lautzenheiser +1 more | 2004-09-21 |
| 6673250 | Radio frequency identification system for a fluid treatment system | Roy W. Kuennen, David W. Baarman, Ronald C. Markham, Terry L. Lautzenheiser | 2004-01-06 |
| 6569319 | UV light intensity detector in a water treatment system | Roy W. Kuennen, Eric K. Bartkus, David W. Baarman, Kenneth E. Conrad, Terry L. Lautzenheiser | 2003-05-27 |
| 6514420 | Point-of use water treatment system | Roy W. Kuennen, Eric K. Bartkus, David W. Baarman, Kenneth E. Conrad | 2003-02-04 |
| 6491868 | Point-of-use water treatment system | Roy W. Kuennen, Eric K. Bartkus, David W. Baarman, Kenneth E. Conrad, Terry L. Lautzenheiser | 2002-12-10 |
| 6451202 | Point-of-use water treatment system | Roy W. Kuennen, Eric K. Bartkus, David W. Baarman, Kenneth E. Conrad, Terry L. Lautzenheiser +1 more | 2002-09-17 |