Individual holder
FRIEDMAN MICHAEL N
US·5 granted patents·113 citations·filing 1981–1998
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
5 records- 0180US4795287ALoose leaf holder for use with ring bindersFRIEDMAN MICHAEL N·Filed 1987·Granted Jan 3, 1989·31 cites·11 claims
- 0277US4863194AIndexing systemsFRIEDMAN MICHAEL N·Filed 1988·Granted Sep 5, 1989·28 cites·10 claims
- 0376US5042841ACombined cover and storage compartment for a ring binderFRIEDMAN MICHAEL N·Filed 1990·Granted Aug 27, 1991·32 cites·7 claims
- 0452US4374627ABinder for perforated sheets or the likeFRIEDMAN MICHAEL N·Filed 1981·Granted Feb 22, 1983·12 cites·21 claims
- 0543US6010270ARing binder with locking deviceFRIEDMAN MICHAEL N·Filed 1998·Granted Jan 4, 2000·10 cites·9 claims
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