Issued Patents All Time
Showing 25 most recent of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9599563 | LED inspection lamp and LED spotlight | Richard J. Doran, Donald L. Klipstein, Thomas M. Lemons, Bjarki Hallgrimson, Sarah Dobbin | 2017-03-21 |
| 9464767 | LED work light | Robert Tod Whitfield, Donald L. Klipstein, Lorne Hilts | 2016-10-11 |
| 9228766 | Inspection port | Paul Appler, Steven M. Knowles, Donald L. Klipstein | 2016-01-05 |
| 9182089 | Compact LED work light | Robert Tod Whitfield, Donald L. Klipstein | 2015-11-10 |
| 8789963 | Compact LED work light | Robert Tod Whitfield, Donald L. Klipstein | 2014-07-29 |
| 8562184 | LED work light | Donald L. Klipstein, Robert Tod Whitfield | 2013-10-22 |
| 8388167 | LED lamps and LED driver circuits for the same | Donald L. Klipstein | 2013-03-05 |
| 8316653 | Inspection port | Paul Appler, Steven M. Knowles, Donald L. Klipstein | 2012-11-27 |
| 8065884 | Composition and methods for injection of sealants into air conditioning and refrigeration systems | Paul Appler, George E. Cranton | 2011-11-29 |
| 8033681 | LED work light | Donald L. Klipstein, Sarah Dobbin, Robert Tod Whitfield, Bjarki Hallgrimsson, Lorne Hilts | 2011-10-11 |
| 7950818 | LED lamps and LED driver circuits for the same | Donald L. Klipstein | 2011-05-31 |
| 7758204 | LED spotlight | Donald L. Klipstein, Robert Tod Whitfield | 2010-07-20 |
| 7614663 | Swivel assemblies for conduits carrying pressurized fluids to or from air conditioning or refrigeration systems | Steven M. Knowles, Gregory R. W. McEwan | 2009-11-10 |
| 7568816 | LED inspection lamp and LED spot light | Richard J. Doran, Donald L. Klipstein, Thomas M. Lemons, Bjarki Hallgrimson, Sarah Dobbin | 2009-08-04 |
| 7559245 | Vacuum gauge and refrigeration system service tool, and methods of using the same | Steven M. Knowles, Paul Appler | 2009-07-14 |
| 7553051 | LED work light | Donald L. Klipstein, Sarah Dobbin, Robert Tod Whitfield, Bjarki Hallgrimsson, Lorne Hilts | 2009-06-30 |
| 7490951 | LED lamps and LED driver circuits for the same | Donald L. Klipstein | 2009-02-17 |
| 7478649 | Absorbent plugs and caps for air conditioning and refrigeration fittings | Steven M. Knowles | 2009-01-20 |
| 7392735 | Manual liquid metering device and cartridge | Bjarki Hallgrimsson, Gregory R. W. McEwan | 2008-07-01 |
| 7296423 | Composition and methods for injection of sealants into air conditioning and refrigeration systems | Paul Appler, George E. Cranton | 2007-11-20 |
| 7214952 | LED lamps and LED driver circuits for the same | Donald J. Klipstein | 2007-05-08 |
| 7204606 | LED inspection lamp and LED spot light | Richard J. Doran, Donald L. Klipstein, Thomas M. Lemons, Bjarki Hallgrimsson, Sarah Dobbin | 2007-04-17 |
| 7145649 | Method of producing an ultra-violet or near ultra-violet light source for non-destructive inspection or testing | — | 2006-12-05 |
| D520164 | Work light | Sarah Dobbin, Bjarki Hallgrimsson, Lorne Hilts | 2006-05-02 |
| 6979104 | LED inspection lamp | Richard J. Doran, Donald L. Klipstein, Thomas M. Lemons | 2005-12-27 |