David Sweet has been granted 11 US patents while listed as an inventor at Taco . The first was granted in 1981 and the most recent in November 2025. David Sweet ranks #435,149 of 4,157,543 US inventors in our database (top 10.5%). Patent records list David Sweet in Old Lyme, CT, US.
Patents per Year Patents granted per year, 1981 to 2025 Bar chart with a peak of 2 patents in 2006. peak 2 1981: 1 patents 1981 1995: 1 patents 1995 1996: 1 patents 1996 1997: 1 patents 1997 2006: 2 patents 2006 2010: 1 patents 2010 2013: 1 patents 2013 2024: 1 patents 2024 2025: 2 patents 2025
Issued Patents All Time
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Showing 1–11 of 11 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
12473923 High efficiency circulator with sensors Steve Thompson , Vladislav Milchev Stakev , Robert F. Birkenstock, JR. , Douglas Bird 2025-11-18
12313075 High efficiency hydronic circulator with sensors Steve Thompson , Vladislav Milchev Stakev , Robert F. Birkenstock, JR. , Douglas Bird 2025-05-27
11999866 Polymalonate and cyanoacrylate based surface concrete sealers Michael Czaplicki , Ken Mazich , Yuan Lu , Kevin Hicks , Austin O'Connor 2024-06-04
8511296 Solar heating systems — 2013-08-20
7708010 Solar heating systems — 2010-05-04
$23,432,000
7048200 Integrated injection-pumping fixture for transferring heat between higher and lower-temperature loops in a hydronic heating system — 2006-05-23
$4,002,000
7044398 Integrated fixture for transferring heat between higher and lower-temperature loops in a hydronic heating system — 2006-05-16
$6,696,000
5641818 Aqueous, essentially voc-free adhesive epoxy primer — 1997-06-24
$3,706,000
5576061 Aqueous, essentially VOC-free adhesive epoxy primer — 1996-11-19
$10,858,000
5461090 Aqueous, essentially VOC-free adhesive epoxy primer — 1995-10-24
$2,766,000
D259773 Cross mobile — 1981-07-07