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Charles Spence — 2 Patents

TTTtx: 1 patents #12 of 43Top 30%

Germantown, TN: #220 of 458 inventorsTop 50%

Tennessee: #7,603 of 20,272 inventorsTop 40%

Overall (All Time): #1,709,992 of 4,157,543Top 45%

2 Patents All Time

Charles Spence has been granted 2 US patents while listed as an inventor at Ttx. The first was granted in 1989 and the most recent in July 1992. Charles Spence ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Charles Spence in Germantown, TN, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
5133531	Railroad car jack	William G. Grashoff	1992-07-28
D300550	Fishing lure blade	—	1989-04-04

Charles Spence — 2 Patents

Issued Patents All Time

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