Patents per Year
Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| D1099291 | Powered air purifying respirator mount | Garth Ivory, Ryan Whitwood, William C. Hamill, Edward S. M. Williams, Julia Bartnik-Thumm +1 more | 2025-10-21 | |
| 11896074 | Head top | Samuel M. Kelly, Patrick Bruyn, Julia Bartnick-Thumm, Edward S. M. Williams, James A. Te Aika +1 more | 2024-02-13 | |
| D968588 | Powered air purifying respirator main body | Garth Ivory, Ryan Whitwood, William C. Hamill, Edward S. M. Williams, Julia Bartnik-Thumm +1 more | 2022-11-01 | |
| D954252 | Powered air purifying respirator | Garth Ivory, Ryan Whitwood, William C. Hamill, Edward S. M. Williams, Julia Bartnik-Thumm +1 more | 2022-06-07 | |
| 8275138 | Dynamic acoustic rendering | Nam Do | 2012-09-25 | |
| 7248701 | Dynamic acoustic rendering | Nam Do | 2007-07-24 | $1,366,000 |
| 6973192 | Dynamic acoustic rendering | Nam Do | 2005-12-06 | $7,243,000 |