Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
CS

Charles D. Stephens

CTCommunications Technology: 4 patents #4 of 31Top 15%
Dallas, TX: #1,587 of 7,543 inventorsTop 25%
Texas: #28,318 of 125,132 inventorsTop 25%
Overall (All Time): #1,037,145 of 4,157,543Top 25%
5 Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6879664 Method and apparatus for mapping the terminations of large numbers of communications circuits 2005-04-12
6763108 Apparatus and method for line pair testing and fault diagnostics 2004-07-13
6144721 Apparatus and method for line pair testing and fault diagnostics 2000-11-07
5528662 Active strapping and switching device for telephone line testing 1996-06-18
5218616 Telephone line tester 1993-06-08