Richard E. Speece — 14 Patents at Eco Oxygen Technologies

Richard E. Speece has been granted 14 US patents while listed as an inventor at Eco Oxygen Technologies. The first was granted in 1981 and the most recent in March 2020. Richard E. Speece ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list Richard E. Speece in Wayne, PA, US.

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #	Title	Co-Inventors	Date
10584045	Conversion of secondary clarifier into an oxic bioreactor by superoxygenation	—	2020-03-10
8580125	Method and apparatus for control of a gas or chemical	David A. Clidence	2013-11-12
7754082	Method and apparatus for control of a gas or chemical	David A. Clidence	2010-07-13
7566397	Superoxygenation of raw wastewater for odor/corrosion control	—	2009-07-28
7320749	Method and apparatus for control of a gas or chemical	David A. Clidence	2008-01-22
7163632	System and method for oxygenation for wastewater treatment	—	2007-01-16
6848258	Gas transfer energy recovery and effervescence prevention apparatus and method	—	2005-02-01
6668556	Gas transfer energy recovery and effervescence prevention apparatus and method	—	2003-12-30
6485003	Gas dissolving apparatus and method	—	2002-11-26
6474627	Gas dissolving apparatus and method	—	2002-11-05
6322055	Gas dissolving apparatus and method	—	2001-11-27
5538635	Method for dissolving gas in liquid including pressurized bubble contactor in sidestream	Eugene E. Mazewski, Peter J. Petit	1996-07-23
5411660	Apparatus for dissolving gas in liquid including pressurized bubble contactor in sidestream	Eugene E. Mazewski, Peter J. Petit	1995-05-02
4251365	Low energy gas transfer system	—	1981-02-17

Richard E. Speece — 14 Patents

Issued Patents All Time

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