Assignee
STEPHENS IND INC
4 granted patents·113 citations·filing 1975–1978
Top patents by PatentIndex Score
4 records- 0186US4247008AMethod and system for sorting envelopesSTEPHENS IND INC·Filed 1978·Granted Jan 27, 1981·93 cites·8 claims
- 0242US4097040AMultiple size envelope feederSTEPHENS IND INC·Filed 1976·Granted Jun 27, 1978·8 cites·19 claims
- 0333US4050222AEnvelope opening apparatusSTEPHENS IND INC·Filed 1975·Granted Sep 27, 1977·6 cites·30 claims
- 0430US4144786AEnvelope edge slitting apparatusSTEPHENS IND INC·Filed 1977·Granted Mar 20, 1979·6 cites·5 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →