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USPTO Patent Rankings Data through Dec 31, 2025
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Hieu T. Ball — 12 Patents

UNUnknown: 3 patents #7,366 of 83,584Top 9%
The General Hospital: 1 patents #1,411 of 3,021Top 50%
Walnut Creek, CA: #156 of 1,300 inventorsTop 15%
California: #51,404 of 386,348 inventorsTop 15%
Overall (All Time): #396,045 of 4,157,543Top 10%
12 Patents All Time
Hieu T. Ball has been granted 12 US patents while listed as an inventor at Unknown. The first was granted in 1994 and the most recent in November 2025. Hieu T. Ball ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list Hieu T. Ball in Walnut Creek, CA, US.

Patents per Year

Patents granted per year, 1994 to 2025Bar chart with a peak of 2 patents in 2018.peak 21994: 1 patents19942016: 1 patents20162017: 1 patents20172018: 2 patents20182019: 1 patents20192021: 1 patents20212022: 1 patents20222023: 1 patents20232024: 1 patents20242025: 2 patents2025

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
12471832 System and methods for improving diagnostic evoked potential studies for functional assessments of nerves and nerve pathways Jonathan D. Block 2025-11-18
12318309 Modular interbody spacer Lance Middleton 2025-06-03
12029565 Systems and methods for nerve mapping and monitoring Jonathan D. Block 2024-07-09
11654032 Modular interbody spacer Lance Middleton 2023-05-23
11272871 System and methods for improving diagnostic evoked potential studies for functional assessments of nerves and nerve pathways Jonathan D. Block 2022-03-15
10973451 Systems and methods for nerve mapping and monitoring Jonathan D. Block 2021-04-13
10517740 Modular interbody spacer Lance Middleton 2019-12-31
10034766 Interbody spacer Lance Middleton 2018-07-31
10016142 Systems and methods for nerve mapping and monitoring Jonathan D. Block 2018-07-10
9693875 Interbody spacer Lance Middleton 2017-07-04
9295561 Interbody spacer Lance Middleton 2016-03-29
5284155 Cartilage degradation assay system Benjamin Treadwell, Henry T. Mankin 1994-02-08

Frequent Collaborators

Lance Middleton6 shared
Jonathan D. Block5 shared
Benjamin Treadwell1 shared
Henry T. Mankin1 shared

Nearby-Ranked Inventors

John Patrick Hickey, III12
Gregory Lutter12
Josselin Xavier COUPARD12
Xuan Li12
Nandana Mihindukulasooriya12
Keiichi Matsuda12
Robert Imig12
Peter Mage12
Sze Ping Ching12