Assignee
ZELCZER ALEX
US·6 granted patents·175 citations·filing 1983–1991
Top patents by PatentIndex Score
6 records- 0188US4545524AZone control apparatus for central heating and/or cooling systemsZELCZER ALEX·Filed 1983·Granted Oct 8, 1985·51 cites·28 claims
- 0281US4742956AZone control apparatus for central heating and/or cooling systemsZELCZER ALEX·Filed 1986·Granted May 10, 1988·38 cites·11 claims
- 0369US5170986AFlow control bladders for zone control apparatusZELCZER ALEX·Filed 1991·Granted Dec 15, 1992·36 cites·16 claims
- 0469US4702412AZone control apparatus for central heating and/or cooling systemsZELCZER ALEX·Filed 1987·Granted Oct 27, 1987·25 cites·13 claims
- 0555US4600144AZone control apparatus for central heating and/or cooling systemsZELCZER ALEX·Filed 1985·Granted Jul 15, 1986·17 cites·1 claims
- 0639US4848654AZone control and smoke damping apparatus for central heating and/or cooling systemsZELCZER ALEX·Filed 1987·Granted Jul 18, 1989·8 cites·15 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →