Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11091999 | Methods and apparatus for cement bond evaluation through production tubing | Yibing Zheng | 2021-08-17 |
| 10938557 | Distributed ledger for generating and verifying random sequence | Si Bin Fan, David L. Kaminsky, Tao Liu, Jing Lu, Xiao Yan Tang | 2021-03-02 |