Weigl; Siegfried J.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Weigl; Siegfried J..The latest application filed is for "heat pumps with unequal cooling and heating capacities for climates where demand for cooling and heating are unequal, and method of adapting and distributing such heat pumps".

Company Profile

0.4.2

Weigl; Siegfried J. - St. Clair MO

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Patent Activity

Patent	Date
Heat pumps with unequal cooling and heating capacities for climates where demand for cooling and heating are unequal, and method of adapting and distributing such heat pumps Grant 9,328,946 - Chen , et al. May 3, 2	2016-05-03
Heat Pumps With Unequal Cooling And Heating Capacities For Climates Where Demand For Cooling And Heating Are Unequal, And Method Of Adapting And Distributing Such Heat Pumps App 20150321298 - Chen; Jie ; et al.	2015-11-12
Heat pumps with unequal cooling and heating capacities for climates where demand for cooling and heating are unequal, and method of adapting and distributing such heat pumps Grant 9,121,628 - Chen , et al. September 1, 2	2015-09-01
Heat Pumps With Unequal Cooling and Heating Capacities for Climates Where Demand for Cooling and Heating are Unequal, and Method of Adapting and Distributing Such Heat Pumps App 20120090337 - Chen; Jie ; et al.	2012-04-19
HVAC control using discrete-speed thermostats and run times Grant 8,011,199 - Chen , et al. September 6, 2	2011-09-06

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