Individual holder
HAFNER OTTO P
US·7 granted patents·139 citations·filing 1975–1988
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
7 records- 0188US3981064AMethod and apparatus for interlocking overlapping sheet materialHAFNER OTTO P·Filed 1975·Granted Sep 21, 1976·36 cites·4 claims
- 0288US3934327AMethod of interlocking overlapping sheet materialHAFNER OTTO P·Filed 1975·Granted Jan 27, 1976·48 cites·2 claims
- 0369US4184396ALocking joint manufactureHAFNER OTTO P·Filed 1977·Granted Jan 22, 1980·16 cites·27 claims
- 0452US4986691AStrip locking joint & method of making sameHAFNER OTTO P·Filed 1988·Granted Jan 22, 1991·13 cites·5 claims
- 0551US4607418AMeans for interlocking overlapping sheet materialHAFNER OTTO P·Filed 1983·Granted Aug 26, 1986·12 cites·17 claims
- 0645US4896414AWaterproof cut and displace joint and method for making sameHAFNER OTTO P·Filed 1988·Granted Jan 30, 1990·8 cites·4 claims
- 0743US4176441ALocking joint machineHAFNER OTTO P·Filed 1977·Granted Dec 4, 1979·6 cites·12 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →