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USPTO Patent Rankings Data through Dec 31, 2025
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Dave DeWaard — 10 Patents

DADari-Tech: 5 patents #2 of 5Top 40%
Lynden, WA: #5 of 81 inventorsTop 7%
Washington: #10,505 of 76,902 inventorsTop 15%
Overall (All Time): #481,000 of 4,157,543Top 15%
10 Patents All Time
Dave DeWaard has been granted 10 US patents while listed as an inventor at Dari-Tech. The first was granted in 2000 and the most recent in April 2020. Dave DeWaard ranks #481,000 of 4,157,543 US inventors in our database (top 11.6%). Patent records list Dave DeWaard in Lynden, WA, US.

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
10609892 Closed-loop, short interval flushing method and system for use in automated milking system dairies 2020-04-07
RE46988 Methods and apparatus for cleaning the udder of a cow 2018-08-14
8728801 Composter mechanism 2014-05-20
8470183 Systems and methods for extracting sand from raw slurry material 2013-06-25
7987778 Pre-separator for a screen separator 2011-08-02
7306731 Manure separation for digester method and apparatus 2007-12-11
6997135 Valve for a milking apparatus 2006-02-14
6637375 Cow indexing and positioning method and apparatus 2003-10-28
6443094 Method and apparatus for cleaning the udder of a cow 2002-09-03
6105536 Wash system, apparatus and method for a rotary milking apparatus 2000-08-22