Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7503655 | Methods and apparatuses for altering relative curvature of field and positions of peripheral, off-axis focal positions | Nelson Greeman, Jr., Arthur Ho, Brien Anthony Holden | 2009-03-17 |
| 6925676 | Gutter cleaner | Bruce G. Heavner | 2005-08-09 |
| 5539818 | Telephonic console with prerecorded voice message and method | John M. Zdenek, David A. Marcinkiewicz, Andrew Capigatti | 1996-07-23 |
| 5461668 | Telephonic console with programmable nonvolatile personality memory and method | John M. Zdenek, David A. Marcinkiewicz | 1995-10-24 |
| 5315650 | Caller identification transmit path limiter | Van Son Nguyen | 1994-05-24 |