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USPTO Patent Rankings Data through Dec 31, 2025
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David Schaefer — 7 Patents

WCWaterworks Ip Co.: 4 patents #3 of 7Top 45%
Intel: 1 patents #18,326 of 30,777Top 60%
Finlayson, MN: #2 of 4 inventorsTop 50%
Minnesota: #10,472 of 52,454 inventorsTop 20%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
David Schaefer has been granted 7 US patents while listed as an inventor at Waterworks Ip Co.. The first was granted in 2011 and the most recent in May 2025. David Schaefer ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list David Schaefer in Finlayson, MN, US.

Patents per Year

Patents granted per year, 2011 to 2025Bar chart with a peak of 3 patents in 2012.peak 32011: 1 patents20112012: 3 patents20122016: 1 patents20162025: 2 patents2025

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
D1074932 CNC fixture — 2025-05-13
D1074931 CNC fixture — 2025-05-13
9436431 Anonymously tailoring environments to the preferences of physically proximate users Kevin Jacobs, Charles Baron 2016-09-06 $9,244,000
D666277 Faucet handle — 2012-08-28
D664631 Faucet handle — 2012-07-31
D658271 Faucet handle — 2012-04-24
D649227 Low profile spout — 2011-11-22

Frequent Collaborators

Kevin Jacobs1 shared
Charles Baron1 shared

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