Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11781347 | Lock assembly on a security door | — | 2023-10-10 |
| 9290963 | Door lever and key cylinder lock combination | Jeffrey Regen | 2016-03-22 |
| 9249599 | Door lever assembly | Jeffrey Regen | 2016-02-02 |
| 9074392 | Multi-point exit door lock and method of installation | — | 2015-07-07 |
| 8803689 | Over-the-door pressure sensor anti-ligature and alarm system | — | 2014-08-12 |
| 8617404 | Fluid filter apparatus and methods | Otto Knottnerus, Larry Langmeier | 2013-12-31 |
| 8534723 | Conical shank anti-ligature releasable door lever | — | 2013-09-17 |
| D680849 | Door lever assembly | Jeffrey Regen | 2013-04-30 |
| 8249896 | Method or secure diagnostic screening, servicing, treatment, and compliance monitoring for sleep apnea for oil and gas offshore workers, construction workers and heavy equipment workers | Helen Francis Berger | 2012-08-21 |
| 8200510 | Method for secure diagnostic screening, servicing, treatment, and compliance monitoring for sleep apnea for operators of transport vehicles | Helen Francis Berger | 2012-06-12 |
| 7938971 | Fluid filter apparatus and methods | Otto Knottnerus, Larry Langmeier | 2011-05-10 |
| 7720696 | Computerized system for tracking health conditions of users | Helen Francis Berger | 2010-05-18 |
| 7599892 | Method for secure diagnostic screening, servicing, treatment, and compliance monitoring for sleep apnea in truck drivers | Helen Francis Berger | 2009-10-06 |
| 6953903 | Signal transfer apparatus | Simon Berger, Peter Zoltan | 2005-10-11 |
| D469345 | Bullet design wheel fastener with nut base | David A. Berry | 2003-01-28 |
| D460398 | Bullet design wheel fastener with slotted base | David A. Berry | 2002-07-16 |
| 5692786 | Electromagnetic door assembly | — | 1997-12-02 |