Individual holder
STEPHENS JOHN A
3 granted patents·25 citations·filing 1970–1984
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0155US4558929ANon-fogging mirrorSTEPHENS JOHN A·Filed 1984·Granted Dec 17, 1985·17 cites·2 claims
- 0232US4089920AHigh-strength, light-weight, fired clay body and method of producing sameSTEPHENS JOHN A·Filed 1970·Granted May 16, 1978·7 cites·8 claims
- 0325US4656150ATreatment of sericitic clays to produce an adsorbent, absorbent productSTEPHENS JOHN A·Filed 1983·Granted Apr 7, 1987·1 cites·4 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →