Individual holder
SINGH KANWAL N
3 granted patents·174 citations·filing 1976–1993
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0191US4363221AWater heating system having a heat pumpSINGH KANWAL N·Filed 1981·Granted Dec 14, 1982·80 cites·16 claims
- 0289US4098092AHeating system with water heater recoverySINGH KANWAL N·Filed 1976·Granted Jul 4, 1978·74 cites·3 claims
- 0348US5339644ADefrost system for refrigeration apparatusSINGH KANWAL N·Filed 1993·Granted Aug 23, 1994·20 cites·13 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →