Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Howard C. Mitzel — 4 Patents

ACAct: 1 patents #13 of 40Top 35%
Monterey, CA: #47 of 240 inventorsTop 20%
California: #126,026 of 386,348 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Howard C. Mitzel has been granted 4 US patents while listed as an inventor at Act. The first was granted in 2013 and the most recent in August 2020. Howard C. Mitzel ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Howard C. Mitzel in Monterey, CA, US.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
10755589 System and method for scoring constructed responses Susan M. Lottridge, John A. Pennington 2020-08-25
9152620 System, method, and computer-readable medium for plagiarism detection Susan M. Lottridge, John A. Pennington 2015-10-06
8882512 System and method for scoring constructed responses Susan M. Lottridge, John A. Pennington 2014-11-11
8595166 System, method, and computer-readable medium for plagiarism detection Susan M. Lottridge, John A. Pennington 2013-11-26