Issued Patents All Time
Showing 1–25 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10002594 | Adjustable neck stiffener for stringed musical instruments | Michael D. Griswold | 2018-06-19 |
| 9803672 | Split end tube connector | Michael D. Griswold, Timothy Braun | 2017-10-31 |
| 9783291 | Hybrid axial/cross-flow fan multi-rotor aerial vehicle | Joseph Kummer | 2017-10-10 |
| 9359817 | Dual-use modular carbon-fiber ladder and bridge | Joseph Kummer, Michael D. Griswold, Michael J. Hall | 2016-06-07 |
| 9355619 | Adjustable neck stiffener for stringed musical instruments | Michael D. Griswold | 2016-05-31 |
| 9022375 | Adjustable c-clamp system | Edmund Zielinski, Joseph Kummer | 2015-05-05 |
| 8962956 | Neck stiffener for stringed musical instruments | Michael D. Griswold | 2015-02-24 |
| 8800718 | Ultra lightweight segmented ladder/bridge system | Joseph Kummer, Michael D. Griswold, Michael J. Hall, Matthew A. Bush | 2014-08-12 |
| 8602164 | Dual-use modular carbon-fiber ladder and bridge | Joseph Kummer, Michael D. Griswold, Michael J. Hall, Matthew A. Bush | 2013-12-10 |
| 8556358 | Robust lightweight electronic rack enclosure | Lyndal W. Fitzgerald | 2013-10-15 |
| 8528291 | 3-dimensional universal tube connector system | Michael D. Griswold, Michael J. Hall, Matthew A. Bush, Joseph Kummer | 2013-09-10 |
| 8448748 | Ultra lightweight segmented ladder/bridge system | Joseph Kummer, Michael D. Griswold, Michael J. Hall, Matthew A. Bush | 2013-05-28 |
| 8397463 | 3-dimensional universal tube connector system | Michael D. Griswold, Michael J. Hall, Matthew A. Bush, Joseph Kummer | 2013-03-19 |
| 8333816 | Multi-use personal ventilation/filtration system | Joseph Kummer | 2012-12-18 |
| 7932453 | Tool for setting an instrument sound post | Edmund Zielinski | 2011-04-26 |
| 7892306 | Multi-use personal ventilation/filtration system | Joseph Kummer | 2011-02-22 |
| 7276868 | Carbon-fiber laminate musical instrument sound board | — | 2007-10-02 |
| 6852092 | Handpiece system for multiple phacoemulsification techniques | Kenneth E. Kadziauskas, Mark E. Steen | 2005-02-08 |
| 6564084 | Magnetic field shielding and detecting device and method thereof | Frederic H. Metildi, William Chieffo | 2003-05-13 |
| 6444358 | Battery for powering a medical device having low magnetic susceptibility | Earl R. Holdren, III, Jeffrey B. Mallon, Philip Wutz, Michael F. Pyszczek, Jack A. Belstadt +2 more | 2002-09-03 |
| 6056415 | Penlight having low magnetic susceptibility | Earl R. Holdren, III, Richard W. Mott, Charles L. Mozeko, Jack A. Belstadt, Jeffrey B. Mallon +2 more | 2000-05-02 |
| 6036639 | Laryngoscope having low magnetic susceptibility and method of assembling | Earl R. Holdren, III, Jack A. Belstadt, Charles L. Mozeko, Richard W. Mott, Jeffrey B. Mallon +2 more | 2000-03-14 |
| 5993123 | Three-dimensional duplicating carving machine | Earl R. Holden, III, Stephen H. Blaisdell | 1999-11-30 |
| 5345925 | Self-advancing endoscope | Peter J. Bettis, Karl Decerce | 1994-09-13 |
| 4854302 | Video equipped endoscope with needle probe | — | 1989-08-08 |