RD

Robert Dulin

RH Research By Copperhead Hill: 5 patents #1 of 1Top 100%
📍 Kingsbury, TX: #1 of 2 inventorsTop 50%
🗺 Texas: #16,798 of 125,132 inventorsTop 15%
Overall (All Time): #569,157 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
10107408 Temperature controlled purge valve with washer/O-ring seal stack 2018-10-23
9822886 Temperature controlled purge valve with washer/O-ring seal stack 2017-11-21
9482357 Temperature controlled purge valve for use in water systems 2016-11-01
8827237 Metered fill valve 2014-09-09
7168450 Valve adapter 2007-01-30
6892747 Temperature actuated valve 2005-05-17
6644345 Flow control valve 2003-11-11
6530391 Temperature activated valve 2003-03-11
6408870 Flow control valve 2002-06-25