Issued Patents All Time
Showing 51–69 of 69 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7249791 | DOUBLEDEADLOCK™: A true combination door latch and deadbolt lock with optional automatic deadbolt locking when a door is latched | — | 2007-07-31 |
| 7174319 | Methods and systems for single sign-on authentication in a multi-vendor e-commerce environment and directory-authenticated bank drafts | — | 2007-02-06 |
| 7152048 | Memphis: multiple electronic money payment highlevel integrated security | — | 2006-12-19 |
| 7088229 | Methods and systems for verifying the position and status of hierarchically arranged objects | — | 2006-08-08 |
| 7083206 | DoubleDeadLock™: a true combination door latch and deadbolt lock with optional automatic deadbolt locking when a door is latched | — | 2006-08-01 |
| 7077314 | Methods and systems for voter-verified secure electronic voting | — | 2006-07-18 |
| 6941282 | Methods and systems for carrying out directory-authenticated electronic transactions including contingency-dependent payments via secure electronic bank drafts | — | 2005-09-06 |
| 6898577 | Methods and systems for single sign-on authentication in a multi-vendor e-commerce environment and directory-authenticated bank drafts | — | 2005-05-24 |
| 6655872 | Method, system, and device for deploying a containment boom | — | 2003-12-02 |
| 6588264 | Pressure indicating devices | — | 2003-07-08 |
| 6529885 | Methods and systems for carrying out directory-authenticated electronic transactions including contingency-dependent payments via secure electronic bank drafts | — | 2003-03-04 |
| 4961761 | Cyclone separator wall refractory material system | — | 1990-10-09 |
| 4635713 | Erosion resistant waterwall | Leigh B. Egbert | 1987-01-13 |
| 4623891 | Far-field nulling technique for reducing the susceptibility to cross-polarized signal in dual-polarized monopulse-type tracking antennas | — | 1986-11-18 |
| 4554967 | Erosion resistant waterwall | Leigh B. Egbert | 1985-11-26 |
| 4493206 | Erosion test apparatus | Allyn P. Norris | 1985-01-15 |
| 4418650 | Fluidized bed heat exchanger having an insulated fluid cooled air distributor plate assembly | Venkatraman Seshamani, Leigh B. Egbert | 1983-12-06 |
| 4210978 | Automatic carpet cleaning machine | Otto R. Kafer, Mike J. Todd | 1980-07-08 |
| 4196492 | Automatic carpet cleaning machine | Otto R. Kafer, Mike J. Todd | 1980-04-08 |