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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
DC

David Cowings — 5 Patents

Broadcom: 5 patents #2,119 of 9,346Top 25%
Corona, CA: #284 of 1,452 inventorsTop 20%
California: #107,996 of 386,348 inventorsTop 30%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
David Cowings has been granted 5 US patents while listed as an inventor at Broadcom. The first was granted in 2011 and the most recent in September 2012. David Cowings ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list David Cowings in Corona, CA, US.

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
8271588 System and method for filtering fraudulent email messages Mark Bruno, Sanford Jensen, Dylan Morss, Ken Schneider 2012-09-18 $10,001,000
8145710 System and method for filtering spam messages utilizing URL filtering module David Hoogstrate, Sandy Jensen, Art Medlar, Ken Schneider 2012-03-27 $20,018,000
8135778 Method and apparatus for certifying mass emailings Ren Chin, Sanford Jensen 2012-03-13 $19,318,000
8010609 Method and apparatus for maintaining reputation lists of IP addresses to detect email spam Sanford Jensen, Carlin Wiegner 2011-08-30 $11,845,000
7941490 Method and apparatus for detecting spam in email messages and email attachments 2011-05-10 $5,991,000