Inventor · disambiguated record
Richard E. Speece
Also filed as: SPEECE RICHARD E
16 granted patents·2 pending applications·246 citations·filing 1976–2023
94Inventor score
Files withECO OXYGEN TECHNOLOGIES LLC7SPEECE RICHARD E5ENVIREX2CLIDENCE DAVID A1ECO OXYGEN TECH LLC1
Top patents by PatentIndex Score
18 records- 0192US6485003B2Gas dissolving apparatus and methodFiled 2001·Granted Nov 26, 2002·53 cites·8 claims
- 0285US7163632B1System and method for oxygenation for wastewater treatmentSPEECE RICHARD E·Filed 2006·Granted Jan 16, 2007·14 cites·64 claims
- 0383US6848258B1Gas transfer energy recovery and effervescence prevention apparatus and methodECO OXYGEN TECHNOLOGIES LLC·Filed 2003·Granted Feb 1, 2005·25 cites·18 claims
- 0483US4064750AGas flow totalizerSPEECE RICHARD E·Filed 1976·Granted Dec 27, 1977·33 cites·14 claims
- 0582US6322055B1Gas dissolving apparatus and methodECO OXYGEN TECHNOLOGIES LLC·Filed 2000·Granted Nov 27, 2001·24 cites·19 claims
- 0678US6474627B2Gas dissolving apparatus and methodECO OXYGEN TECHNOLOGIES LLC·Filed 2001·Granted Nov 5, 2002·17 cites·9 claims
- 0776US8580125B2Method and apparatus for control of a gas or chemicalCLIDENCE DAVID A·Filed 2010·Granted Nov 12, 2013·4 cites·15 claims
- 0876US7320749B2Method and apparatus for control of a gas or chemicalECO OXYGEN TECHNOLOGIES LLC·Filed 2006·Granted Jan 22, 2008·7 cites·49 claims
- 0976US6668556B2Gas transfer energy recovery and effervescence prevention apparatus and methodECO OXYGEN TECHNOLOGIES LLC·Filed 2002·Granted Dec 30, 2003·11 cites·34 claims
- 1076US4251365ALow energy gas transfer systemSPEECE RICHARD E·Filed 1979·Granted Feb 17, 1981·25 cites·13 claims
- 1174US7754082B2Method and apparatus for control of a gas or chemicalECO OXYGEN TECHNOLOGIES LLC·Filed 2007·Granted Jul 13, 2010·4 cites·3 claims
- 1274US2025081969A1Apparatus and methods for dissolving carbon dioxide in waterECO OXYGEN TECH LLC·Filed 2023·Application pending·0 cites
- 1367US10584045B1Conversion of secondary clarifier into an oxic bioreactor by superoxygenationSPEECE RICHARD E·Filed 2019·Granted Mar 10, 2020·0 cites·21 claims
- 1467US7566397B2Superoxygenation of raw wastewater for odor/corrosion controlECO OXYGEN TECHNOLOGIES LLC·Filed 2005·Granted Jul 28, 2009·10 cites·10 claims
- 1552US4087262APressurized gas transfer system with dilution controlSPEECE RICHARD E·Filed 1976·Granted May 2, 1978·12 cites·8 claims
- 1646US2003201554A1Gas dissolving apparatus and methodECO OXYGEN TECHNOLOGIES LLC AN·Filed 2003·Application pending·0 cites
- 1732US5538635AMethod for dissolving gas in liquid including pressurized bubble contactor in sidestreamENVIREX·Filed 1994·Granted Jul 23, 1996·4 cites·7 claims
- 1832US5411660AApparatus for dissolving gas in liquid including pressurized bubble contactor in sidestreamENVIREX·Filed 1992·Granted May 2, 1995·3 cites·9 claims
Join the waitlist — get patent alerts
Get an alert when Richard E. Speece files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →