Assignee
HEIL QUAKER CORP
US·22 granted patents·1,047 citations·filing 1975–1989
Top patents by PatentIndex Score
22 records- 0196US4038061AAir conditioner controlHEIL QUAKER CORP·Filed 1975·Granted Jul 26, 1977·134 cites·17 claims
- 0295US4045973AAir conditioner controlHEIL QUAKER CORP·Filed 1975·Granted Sep 6, 1977·110 cites·31 claims
- 0394US4942613AService thermostatHEIL QUAKER CORP·Filed 1988·Granted Jul 17, 1990·141 cites·15 claims
- 0494US4034570AAir conditioner controlHEIL QUAKER CORP·Filed 1975·Granted Jul 12, 1977·98 cites·14 claims
- 0592US4261255AVentilation fanHEIL QUAKER CORP·Filed 1979·Granted Apr 14, 1981·84 cites·12 claims
- 0688US4289730AFurnace with flue gas condensate neutralizerHEIL QUAKER CORP·Filed 1980·Granted Sep 15, 1981·51 cites·10 claims
- 0785US4865517ABlower with clam shell housingHEIL QUAKER CORP·Filed 1988·Granted Sep 12, 1989·53 cites·12 claims
- 0883US4691768ALanced fin condenser for central air conditionerHEIL QUAKER CORP·Filed 1985·Granted Sep 8, 1987·55 cites·9 claims
- 0979US4943209AHub for a plastic blower impellerHEIL QUAKER CORP·Filed 1989·Granted Jul 24, 1990·26 cites·11 claims
- 1077US4682579ACondensate overflow control for furnaceHEIL QUAKER CORP·Filed 1986·Granted Jul 28, 1987·41 cites·17 claims
- 1177US4616994AGas burner with means for reducing NOx emissionsHEIL QUAKER CORP·Filed 1984·Granted Oct 14, 1986·25 cites·17 claims
- 1275US4752210APower vent and control for furnaceHEIL QUAKER CORP·Filed 1984·Granted Jun 21, 1988·28 cites·14 claims
- 1374US4543892ACondensate handling means for condensing furnaceHEIL QUAKER CORP·Filed 1983·Granted Oct 1, 1985·27 cites·12 claims
- 1471US4460329APower vent and control for furnaceHEIL QUAKER CORP·Filed 1982·Granted Jul 17, 1984·23 cites·13 claims
- 1570US4390219ATerminal block and capacitor mount for blowerHEIL QUAKER CORP·Filed 1981·Granted Jun 28, 1983·26 cites·18 claims
- 1668US4309947AMounting arrangement for condensate neutralizer in a furnaceHEIL QUAKER CORP·Filed 1980·Granted Jan 12, 1982·31 cites·11 claims
- 1765US4542734AHigh efficiency furnace with secondary heat exchangerHEIL QUAKER CORP·Filed 1983·Granted Sep 24, 1985·19 cites·17 claims
- 1864US4850527ACarton with self positioning interlocking cornersHEIL QUAKER CORP·Filed 1988·Granted Jul 25, 1989·29 cites·9 claims
- 1952US4858683AStamped discharge grille including two louvred sectionsHEIL QUAKER CORP·Filed 1988·Granted Aug 22, 1989·16 cites·18 claims
- 2048US4577615AHeat pipe central furnaceHEIL QUAKER CORP·Filed 1984·Granted Mar 25, 1986·10 cites·24 claims
- 2143US4200117ADamper mechanism for fresh air intakeHEIL QUAKER CORP·Filed 1978·Granted Apr 29, 1980·9 cites·7 claims
- 2237US4702225AControl for heat pipe central furnaceHEIL QUAKER CORP·Filed 1986·Granted Oct 27, 1987·11 cites·9 claims
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