Assignee
NUTECH ENERGY SYSTEMS INC
CA·10 granted patents·846 citations·filing 1983–1999
Top patents by PatentIndex Score
10 records- 0196US4892712AFluid purificationNUTECH ENERGY SYSTEMS INC·Filed 1987·Granted Jan 9, 1990·222 cites·28 claims
- 0293US5126111AFluid purificationNUTECH ENERGY SYSTEMS INC·Filed 1991·Granted Jun 30, 1992·174 cites·20 claims
- 0390USD376842SHeat recovery ventilatorNUTECH ENERGY SYSTEMS INC·Filed 1995·Granted Dec 24, 1996·51 cites·1 claims
- 0489US4966759AFluid purificationNUTECH ENERGY SYSTEMS INC·Filed 1989·Granted Oct 30, 1990·74 cites·8 claims
- 0586US5032241AFluid purificationNUTECH ENERGY SYSTEMS INC·Filed 1989·Granted Jul 16, 1991·100 cites·14 claims
- 0682US5632334AHeat recovery ventilator with room air defrosting featureNUTECH ENERGY SYSTEMS INC·Filed 1995·Granted May 27, 1997·71 cites·13 claims
- 0780US6082704AConnection collar having an adjustable damperNUTECH ENERGY SYSTEMS INC·Filed 1999·Granted Jul 4, 2000·39 cites·12 claims
- 0877US5785117AAir-to-air heat exchanger coreNUTECH ENERGY SYSTEMS INC·Filed 1997·Granted Jul 28, 1998·59 cites·6 claims
- 0965US5855320ACombined furnace and heat recovery systemNUTECH ENERGY SYSTEMS INC·Filed 1997·Granted Jan 5, 1999·36 cites·5 claims
- 1061US4554719AMachine and method for the manufacture of an air-to-air heat exchangerNUTECH ENERGY SYSTEMS INC·Filed 1983·Granted Nov 26, 1985·20 cites·8 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →