DH

David Heil

AD Ademco: 6 patents #40 of 489Top 9%
HO Honeywell: 5 patents #2,263 of 14,447Top 20%
Overall (All Time): #446,884 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11592852 System for communication, optimization and demand control for an appliance Frederick Hazzard, Ravindra Khosla 2023-02-28
10989421 System and approach for water heater comfort and efficiency improvement Ravindra Khosla, Frederick Hazzard 2021-04-27
10738998 Thermophile assembly with heat sink Frederick Hazzard, Ravindra Khosla 2020-08-11
10692351 Water heater leak detection system Frederick Hazzard, Ravindra Khosla 2020-06-23
10670302 Pilot light control for an appliance Frederick Hazzard, Ravindra Khosla 2020-06-02
10428972 Water heater gas valve Frederick Hazzard, Ravindra Khosla 2019-10-01
10132510 System and approach for water heater comfort and efficiency improvement Ravindra Khosla, Frederick Hazzard 2018-11-20
10088852 Multi-tank water heater systems Fritz Hazzard, James Holmberg, Gregory Young, Donald J. Kasprzyk, Bruce L. Hill 2018-10-02
10049555 Water heater leak detection system Frederick Hazzard, Ravindra Khosla 2018-08-14
9920930 Thermopile assembly with heat sink Frederick Hazzard, Ravindra Khosla 2018-03-20
9799201 Water heater leak detection system Frederick Hazzard, Ravindra Khosla 2017-10-24