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

Howard E. Chana — 6 Patents

General Motors: 6 patents #2,630 of 18,328Top 15%
Troy, MI: #532 of 2,712 inventorsTop 20%
Michigan: #15,817 of 86,293 inventorsTop 20%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
Howard E. Chana has been granted 6 US patents while listed as an inventor at General Motors. The first was granted in 1984 and the most recent in September 1988. Howard E. Chana ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Howard E. Chana in Troy, MI, US.

Patents per Year

Patents granted per year, 1984 to 1988Bar chart with a peak of 2 patents in 1985.peak 21984: 1 patents19841985: 2 patents19851987: 1 patents19871988: 2 patents1988

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
4768999 Fan-folded belt Michael B. Solt 1988-09-06
4727968 Synchronizer clutch assembly 1988-03-01
4672862 Hydraulic control system including a torque sensor 1987-06-16
4504247 Control mechanism for a variable ratio drive system Calmer M. Stordahl 1985-03-12
4502845 Multistage gear pump and control valve arrangement 1985-03-05
4445602 Gear synchronizer for a power transmission 1984-05-01 $3,377,000