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

John Hefferman — 3 Patents

MUMerative Us: 3 patents #3 of 76Top 4%
Durham, NC: #1,465 of 4,103 inventorsTop 40%
North Carolina: #14,708 of 45,564 inventorsTop 35%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
John Hefferman has been granted 3 US patents while listed as an inventor at Merative Us. The first was granted in 2022 and the most recent in May 2023. John Hefferman ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list John Hefferman in Durham, NC, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
11651243 Using machine learning to evaluate data quality during a clinical trial based on participant queries Adrian P. Vrouwenvelder, Kimberly D. Kenna, Stephen Alan Carraway 2023-05-16
11556806 Using machine learning to facilitate design and implementation of a clinical trial with a high likelihood of success Adrian P. Vrouwenvelder, Stephen Alan Carraway, Kimberly D. Kenna 2023-01-17
11538559 Using machine learning to evaluate patients and control a clinical trial Adrian P. Vrouwenvelder, Stephen Alan Carraway, Kimberly D. Kenna 2022-12-27