Issued Patents All Time
Showing 26–47 of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10428509 | Pre-primed siphonic toilet | Billy Jack Ahola, Mark E. Baumgartner, Larry Duwell, Don Bogenschuetz, Peter W. Swart +1 more | 2019-10-01 |
| 10189721 | System and method for using AC and DC sensors for water treatment | — | 2019-01-29 |
| 9988802 | Pre-primed siphonic toilet | Billy Jack Ahola, Mark E. Baumgartner, Larry Duwell, Don Bogenschuetz, Peter W. Swart +1 more | 2018-06-05 |
| 9816259 | Water tank system for toilet | Billy Jack Ahola, Lawrence Westphal, Peter W. Swart, Mark E. Baumgartner, Lawrence E. Duwell +3 more | 2017-11-14 |
| 9664553 | Float-based sensor system and method for measuring fluid level | — | 2017-05-30 |
| D747786 | Urinal | Billy Jack Ahola, John F. Emmerling, Mark E. Baumgartner, Tobin J. Vetting, Lawrence E. Duwell +2 more | 2016-01-19 |
| D747447 | Urinal | Billy Jack Ahola, John F. Emmerling, Mark E. Baumgartner, Tobin J. Vetting, Lawrence E. Duwell +2 more | 2016-01-12 |
| D747448 | Urinal | Billy Jack Ahola, John F. Emmerling, Mark E. Baumgartner, Tobin J. Vetting, Lawrence E. Duwell +2 more | 2016-01-12 |
| 9227859 | System and method for using AC and DC sensors for water treatment | — | 2016-01-05 |
| D743012 | Urinal | Billy Jack Ahola, John F. Emmerling, Mark E. Baumgartner, Tobin J. Vetting, Lawrence E. Duwell +2 more | 2015-11-10 |
| 9141959 | Method and system for replaying a voice message and displaying a signed digital photograph contemporaneously | David Auld, Erem Boto, William Chi Yuen Chan, Eric Feeny, Thomas J. Waters +1 more | 2015-09-22 |
| 8709221 | Current regulator for mobile water electrolyzer | — | 2014-04-29 |
| 7977933 | High voltage sensor circuit | — | 2011-07-12 |
| D640891 | Water cooler | — | 2011-07-05 |
| 7381450 | Method of manufacturing flexible magnetic tape | Richard M. Waltham | 2008-06-03 |
| 6914532 | Method and apparatus for alarm verification in a ventilation system | Kenneth William Crooks | 2005-07-05 |
| 6804490 | Selective message broadcasting system | L. Kevin Cook | 2004-10-12 |
| 6771076 | Method and apparatus for measurement of length of cable having fixed impedance | — | 2004-08-03 |
| 4935724 | EAS tag with magnetically structured control element | — | 1990-06-19 |
| 4602957 | Magnetic powder compacts | Harriet C. Pollock | 1986-07-29 |
| 4244998 | Patterned layers including magnetizable material | — | 1981-01-13 |
| 4242400 | Magnetically structured materials | Paul Claes | 1980-12-30 |