Issued Patents All Time
Showing 51–74 of 74 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7252763 | Point-of-use water treatment system | Roy W. Kuennen, Eric K. Bartkus, David W. Baarman, Kenneth E. Conrad, Greg Snyder +1 more | 2007-08-07 |
| 7233078 | Miniature hydro-power generation system | David W. Baarman | 2007-06-19 |
| D541901 | Fluid treatment system | David W. Baarman, Thomas Jay Leppien | 2007-05-01 |
| 7132918 | Inductive coil assembly | David W. Baarman | 2006-11-07 |
| 7119451 | Self-powered miniature liquid treatment system with ultraviolet dosing | David W. Baarman, Thomas Jay Leppien, Christopher B. Houghton, Stephen J. McPhilliamy | 2006-10-10 |
| 7116200 | Inductive coil assembly | David W. Baarman | 2006-10-03 |
| 7067936 | Self-powered miniature liquid treatment system with multiple liquid flow paths | David W. Baarman, Thomas Jay Leppien, Christopher B. Houghton, Stephen J. McPhilliamy | 2006-06-27 |
| 6975198 | Inductive coil assembly | David W. Baarman | 2005-12-13 |
| 6927501 | Self-powered miniature liquid treatment system | David W. Baarman, Thomas Jay Leppien, Christopher B. Houghton, Stephen J. McPhilliamy | 2005-08-09 |
| 6885114 | Miniature hydro-power generation system | David W. Baarman | 2005-04-26 |
| 6793817 | Lamp assembly for point-of-use water treatment system | Roy W. Kuennen, Eric K. Bartkus, David W. Baarman, Kenneth E. Conrad, Greg Snyder +1 more | 2004-09-21 |
| 6673250 | Radio frequency identification system for a fluid treatment system | Roy W. Kuennen, David W. Baarman, Scott A. Mollema, Ronald C. Markham | 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, Scott A. Mollema | 2003-05-27 |
| 6491868 | Point-of-use water treatment system | Roy W. Kuennen, Eric K. Bartkus, David W. Baarman, Kenneth E. Conrad, Scott A. Mollema | 2002-12-10 |
| 6451202 | Point-of-use water treatment system | Roy W. Kuennen, Eric K. Bartkus, David W. Baarman, Kenneth E. Conrad, Greg Synder +1 more | 2002-09-17 |
| 6436299 | Water treatment system with an inductively coupled ballast | David W. Baarman, Roy W. Kuennen, Dennis J. Denen, Ronald C. Markham, Scott A. Mollema | 2002-08-20 |
| 5704704 | Marine pole light and base | Brent A. Reichard, Bruce L. Reniger, Clifton J. Ratza | 1998-01-06 |
| 5664866 | Light assembly | Bruce L. Reniger, Brent A. Reichard | 1997-09-09 |
| D367332 | Marine pole light | Bruce L. Reniger | 1996-02-20 |
| D367331 | Marine navigation light | Bruce L. Reniger, Thomas W. Granzow, Brent A. Reichard, Michael E. Docherty | 1996-02-20 |
| 5440467 | Task light | — | 1995-08-08 |
| 5287259 | Light reflector assembly | — | 1994-02-15 |
| 4562515 | Calibrated area source task light | — | 1985-12-31 |
| 4432044 | Task lighting system | — | 1984-02-14 |