Individual holder
COPELAND CARTER D
US·3 granted patents·13 citations·filing 2016–2023
Individually held — no corporate assignee on record.
Technology mixE21B2
Top patents by PatentIndex Score
3 records- 0161USD818806SCombination bull plugCOPELAND CARTER D·Filed 2016·Granted May 29, 2018·13 cites·1 claims
- 0255US12228021B2Bottom tubing cap for downhole pump systemsCOPELAND CARTER D·Filed 2023·Granted Feb 18, 2025·0 cites·18 claims
- 0343US12221838B1Milling rod guides and methodsCOPELAND CARTER D·Filed 2023·Granted Feb 11, 2025·0 cites·18 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →