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

John C. Carruth — 4 Patents

GE: 4 patents #8,262 of 36,430Top 25%
San Jose, CA: #12,472 of 32,062 inventorsTop 40%
California: #126,026 of 386,348 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
John C. Carruth has been granted 4 US patents while listed as an inventor at GE. The first was granted in 1986 and the most recent in November 1994. John C. Carruth ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list John C. Carruth in San Jose, CA, US.

Patents per Year

Patents granted per year, 1986 to 1994Bar chart with a peak of 1 patents in 1986.peak 11986: 1 patents19861989: 1 patents19891990: 1 patents19901994: 1 patents1994

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5361279 Internal control rod drive for a BWR Irvin R. Kobsa, Charles W. Relf 1994-11-01 $19,468,000
4904443 Control rod drive with upward removable drive internals 1990-02-27 $6,208,000
4863673 Check valve test method for control rod drive 1989-09-05 $5,253,000
4624826 Control rod velocity limiter James E. Cearley, Robert C. Dixon, Stephanie S. Spencer, Jaime A. Zuloaga, Jr. 1986-11-25 $14,438,000