Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11168794 | Double seal lubricated packing gland and rotating sleeve | Christopher Mihm, John Hall, Michael R. Crawford | 2021-11-09 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11168794 | Double seal lubricated packing gland and rotating sleeve | Christopher Mihm, John Hall, Michael R. Crawford | 2021-11-09 |