Individual holder
SCHAFER OTMAR U
3 granted patents·16 citations·filing 1975–1977
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0143US4020895AMethod and apparatus for the alternate heating and cooling of a heat exchanger of a heating and cooling apparatusSCHAFER OTMAR U·Filed 1975·Granted May 3, 1977·12 cites·7 claims
- 0233US4026347AMethod and apparatus for the alternate heating and cooling of a heat exchanger of a heating and cooling systemSCHAFER OTMAR U·Filed 1975·Granted May 31, 1977·4 cites·8 claims
- 0326US4135572AMethod and apparatus for the alternate heating and cooling of a heat exchanger of a heating and cooling systemSCHAFER OTMAR U·Filed 1977·Granted Jan 23, 1979·0 cites·7 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →