Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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John O'Brian — 2 Patents

HUHussmann: 2 patents #51 of 167Top 35%
Hammond, LA: #16 of 74 inventorsTop 25%
Louisiana: #3,215 of 10,876 inventorsTop 30%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
John O'Brian has been granted 2 US patents while listed as an inventor at Hussmann. The first was granted in 2022 and the most recent in May 2025. John O'Brian ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list John O'Brian in Hammond, LA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12298031 Variable refrigerant flow (VRF) dehumidification system 2025-05-13
11215371 Variable refrigerant flow (VRF) dehumidification system 2022-01-04