Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D992610 | Downhole tool including hinges | Christopher Penry, Charles Carroll, Everette Johnston | 2023-07-18 |
| D905126 | Centralizer | Christopher Penry, Everette Johnston, Christian Hatla | 2020-12-15 |
| D873867 | Centralizer | Christopher Penry, Everette Johnston, Christian Hatla | 2020-01-28 |
| 10493515 | Devices and methods for forming bow springs of one-piece centralizers | Eugene Edward Miller, Everette Johnston, Charles Carroll, George W. Ribble | 2019-12-03 |
| D743447 | Centralizer | Christopher Penry, Eugene Edward Miller | 2015-11-17 |
| D718342 | One-piece centralizer with an axial seam and windows | Jean Buytaert, Troy McDaniel, Christopher Penry, Eugene Edward Miller | 2014-11-25 |
| D717836 | One-piece centralizer with an axial seam and end-collar tabs | Jean Buytaert, Troy McDaniel, Christopher Penry, Eugene Edward Miller | 2014-11-18 |
| D717837 | One-piece centralizer with an axial seam | Jean Buytaert, Troy McDaniel, Christopher Penry, Eugene Edward Miller | 2014-11-18 |