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

David Blacka — 5 Patents

VEVerisign: 5 patents #56 of 311Top 20%
Reston, VA: #190 of 864 inventorsTop 25%
Virginia: #6,255 of 34,511 inventorsTop 20%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
David Blacka has been granted 5 US patents while listed as an inventor at Verisign. The first was granted in 2014 and the most recent in October 2019. David Blacka ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list David Blacka in Reston, VA, US.

Patents per Year

Patents granted per year, 2014 to 2019Bar chart with a peak of 2 patents in 2014.peak 22014: 2 patents20142015: 1 patents20152018: 1 patents20182019: 1 patents2019

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10447611 System and method for adding a whitelist entry via DNS Sean Mountcastle 2019-10-15 $124,883,000
9961110 Systems and methods for pre-signing of DNSSEC enabled zones into record sets Ramakant Pandrangi 2018-05-01 $43,582,000
8935430 Secondary service updates into DNS system S. Daniel James, Scott Monroe Stewart, Ravinder Bhalla, Arunabho Das 2015-01-13 $8,300,000
8856305 System and method for adding a whitelist entry via DNS Sean Mountcastle 2014-10-07 $17,096,000
8645700 DNSSEC inline signing David D. Smith, James Gould, Tarik Essawi, Srikanth Veeramachaneni 2014-02-04 $9,521,000