Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8237459 | Method of testing ground resistance by making use of existing telephone lines | Wayne Chappell, Paul R. Siglinger, William C. Wood, Edwin Glenn Yancey | 2012-08-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8237459 | Method of testing ground resistance by making use of existing telephone lines | Wayne Chappell, Paul R. Siglinger, William C. Wood, Edwin Glenn Yancey | 2012-08-07 |