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

KAKamatics: 4 patents #2 of 23Top 9%
FGFirst Wave Products Group: 3 patents #2 of 8Top 25%
Simsbury, CT: #63 of 374 inventorsTop 20%
Connecticut: #6,462 of 34,797 inventorsTop 20%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
David Rowlands has been granted 7 US patents while listed as an inventor at Kamatics. The first was granted in 1991 and the most recent in August 2017. David Rowlands ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list David Rowlands in Simsbury, CT, US.

Patents per Year

Patents granted per year, 1991 to 2017Bar chart with a peak of 2 patents in 2013.peak 21991: 1 patents19911998: 1 patents19982001: 1 patents20012002: 1 patents20022013: 2 patents20132017: 1 patents2017

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
9717651 Pill crushing cup with rotational locking lugs Brian P. Hohl, Brian D. Bell, Douglas P. DuFaux 2017-08-01
D694900 Cup for pill crushing Brian P. Hohl, Brian D. Bell, Douglas P. DuFaux 2013-12-03
D694901 Cup for pill crushing Brian P. Hohl, Brian D. Bell, Douglas P. DuFaux 2013-12-03
6385955 Adjustable height self-lubricating pulley system for use with a flyer bow Scott Scranton 2002-05-14
6223513 Flyer bow with integral enclosed wire guide Jeffrey Post, Mark Broding 2001-05-01
5809763 Flyer bow having an airfoil shape in cross section Jeffrey Post, John C. Kornegay 1998-09-22
4983240 Method of making a flanged braided bearing Stanley S. Orkin, Craig L. Carlson 1991-01-08