Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10697227 | Keyed removable mullion | Jack R. Lehner, Jr. | 2020-06-30 |
| 10648200 | Exit device assembly | Paul R. Arlinghaus, David M. Schacht, Michael D. Coleman, Abdur Rahman Shareef, Marlin Austin | 2020-05-12 |