Michael D. Stone — 3 Patents at Tuthill

Michael D. Stone has been granted 3 US patents while listed as an inventor at Tuthill. The first was granted in 1990 and the most recent in September 1999. Michael D. Stone ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Michael D. Stone in Springfield, MO, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
5948269	Process for the removal and suppression of dissolved hydrogen sulfide and other malodorous compounds and reduction of acidity in liquid and sludge wastewater systems	—	1999-09-07
5702240	Rotary positive displacement blower having a diverging outlet part	Alan D. O'Neal, Carl R. Coles	1997-12-30
4899777	Thermally activated pressure relief plug	Alan D. O'Neal	1990-02-13

Michael D. Stone — 3 Patents

Issued Patents All Time

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