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Earl C. Thompson — 5 Patents

UNUnknown: 1 patents #29,356 of 83,584Top 40%
Hewitt, TX: #11 of 55 inventorsTop 20%
Texas: #28,633 of 125,132 inventorsTop 25%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Earl C. Thompson has been granted 5 US patents while listed as an inventor at Unknown. The first was granted in 1980 and the most recent in May 2000. Earl C. Thompson ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Earl C. Thompson in Hewitt, TX, US.

Patents per Year

Patents granted per year, 1980 to 2000Bar chart with a peak of 1 patents in 1980.peak 11980: 1 patents19801983: 1 patents19831986: 1 patents19861991: 1 patents19912000: 1 patents2000

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6058881 Demand watering valve for fowl, birds and small animals — 2000-05-09
5003927 Demand type animal watering valve — 1991-04-02
4573433 Side activated animal watering valve — 1986-03-04
4402343 Animal watering valve with protected biasing spring Morris C. Keller, Francis Rustin 1983-09-06
4231174 Protective holder for sheet material — 1980-11-04

Frequent Collaborators

Morris C. Keller1 shared
Francis Rustin1 shared

Nearby-Ranked Inventors

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Terry Richard Linn5
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Xiaoxue CHEN5
Mohankumar Krishnan VALIYAMBATH5
Baoquan Tan5
Jack Long5