Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11398905 | Cryptographic systems and methods for modification of pools of random numbers | Michael L. Hammon, Wesley A. Hildebrandt, Kevin Robert McCarthy | 2022-07-26 |
| 10855459 | Cryptographic systems and methods for modification of pools of truly random numbers | Michael L. Hammon, Wesley A. Hildebrandt, Kevin Robert McCarthy | 2020-12-01 |
| 7440581 | Backpack with integrated speakers | — | 2008-10-21 |
| D558814 | Non-stretchable video projection screen | — | 2008-01-01 |
| D554175 | Non-stretchable video projection screen | — | 2007-10-30 |
| 7035422 | Wearable speaker garments | — | 2006-04-25 |
| D492666 | Element of an audio speaker enclosure | — | 2004-07-06 |
| D488800 | Audio speaker enclosure | — | 2004-04-20 |
| D486141 | Audio speaker enclosure | — | 2004-02-03 |
| 6574344 | Directional horn speaker system | Steven Burgess | 2003-06-03 |
| 6438249 | Open back acoustic speaker module | — | 2002-08-20 |
| 6367579 | Inflatable speaker assembly | — | 2002-04-09 |
| 6307947 | Low profile speaker enclosure | — | 2001-10-23 |
| 6176346 | Nesting speaker assembly | — | 2001-01-23 |
| 6134332 | Sound lens speaker system | — | 2000-10-17 |
| 6055320 | Directional horn speaker system | Steven Burgess | 2000-04-25 |
| 6031920 | Coaxial dual-parabolic sound lens speaker system | — | 2000-02-29 |
| 5832099 | Speaker system having an undulating rigid speaker enclosure | — | 1998-11-03 |
| 5673329 | Omni-directional loudspeaker system | — | 1997-09-30 |
| 5274987 | Manual powered lawn mower | — | 1994-01-04 |
| 4548421 | Recumbent vehicle | — | 1985-10-22 |
| 4501934 | Loudspeaker system | — | 1985-02-26 |