Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11826869 | Knife and tool sharpener | Bill Hessler, George C. Jensen | 2023-11-28 |
| 11478890 | Assembly for sharpening and observing wear on a blade | William Kirk Hessler, George C. Jensen, Lee Clark, Rick Stapleford, Zach Siskind | 2022-10-25 |
| D863914 | Sharpener | Mike Endres, Tom Huber, George C. Jensen, Sam Weiner | 2019-10-22 |
| D803648 | Two stage electric sharpener | Samuel Weiner | 2017-11-28 |
| 9656372 | Sharpener for thick knives | Samuel Weiner, Daniel D. Friel, Jr. | 2017-05-23 |
| 9649749 | Manual sharpener | Samuel Weiner, Daniel D. Friel, Jr. | 2017-05-16 |
| D769665 | Kettle | Daniel D. Friel, Jr., Samuel Weiner, Thomas M. Huber | 2016-10-25 |
| 9333613 | Sharpener for knives with widely different edge angles | Daniel D. Friel, Sr. | 2016-05-10 |
| 9242331 | Electric sharpener for ceramic and metal blades | George C. Jensen, Daniel D. Friel, Jr., Samuel Weiner | 2016-01-26 |
| 9168627 | Knife sharpener for asian and european/american knives | Daniel D. Friel, Sr. | 2015-10-27 |
| D721937 | Electric knife sharpener | George C. Jensen, Daniel D. Friel, Jr., Samuel Weiner | 2015-02-03 |
| D718085 | Food slicer | Daniel D. Friel, Jr., Samuel Weiner | 2014-11-25 |
| D699534 | Knife sharpener | Daniel D. Friel, Sr., Abraham Leibson | 2014-02-18 |
| D680399 | Three stage knife sharpener | Bjoern Berger, Daniel D. Friel, Sr. | 2013-04-23 |
| D652284 | Three stage manual knife sharpener | Daniel D. Friel, Sr. | 2012-01-17 |
| D651887 | Two stage manual knife sharpener | Daniel D. Friel, Sr. | 2012-01-10 |
| 8043143 | Sharpeners to create cross-grind knife edges | Daniel D. Friel, Sr., Daniel D. Friel, Jr. | 2011-10-25 |
| D629273 | Manual knife sharpener | Daniel D. Friel, Sr. | 2010-12-21 |
| D620332 | Cross-grind sharpener | Daniel D. Friel, Sr. | 2010-07-27 |
| 7686676 | Precision sharpener for hunting and Asian knives | Daniel D. Friel, Sr. | 2010-03-30 |
| D599161 | Electronic Kettle | Daniel D. Friel, Sr., Daniel D. Friel, Jr., James Fitzgerald, Abraham Leibson, Brian Brant | 2009-09-01 |
| D587551 | Manual sharpener | Daniel D. Friel, Sr., Abraham Leibson, Daniel D. Friel, Jr. | 2009-03-03 |
| 7488241 | Precision control of sharpening angles | Daniel D. Friel, Sr. | 2009-02-10 |
| D567611 | Electric knife sharpener having a brushed texture housing | Daniel D. Friel, Jr., Abraham Leibson | 2008-04-29 |
| D542616 | Electric knife sharpener | Robert P. Bigliano, Daniel D. Friel, Sr. | 2007-05-15 |