Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7990161 | Apparatus for measuring total acid number of oil and estimating lifetime of oil, and method for measuring total acid number of oil and oil sensor using the same | Byeong Kwon Ju, Kyung Soon Shin | 2011-08-02 |