Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11230892 | Modified tubular | David E. Y. Levie | 2022-01-25 |
| 10920501 | Expansion chamber | David Levie | 2021-02-16 |
| 10584553 | Integrally-bonded swell packer | David Levie | 2020-03-10 |
| 10526857 | Radial spring lock system for collars, sleeves and centralizers | David Levie | 2020-01-07 |
| 10113373 | Centraliser | David Levie | 2018-10-30 |
| 9926748 | Modified tubular with wireless communication device | David Levie | 2018-03-27 |
| 9745803 | Centralizer assembly and method for attaching to a tubular | Jean Buytaert, Ira Eugene Hining, Eugene Edward Miller, David E. Y. Levie | 2017-08-29 |
| 9404317 | Modified tubular | David E. Y. Levie | 2016-08-02 |
| 9376871 | Modified tubular | David E. Y. Levie | 2016-06-28 |