Gregory A. Ellard

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Tampa, FL, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for automotive dose control of liquid treatment chemicals
- Patent number 6,129,104
- Issue date Oct 10, 2000
- Tetra Process Technologies a Severn Trent Services Company
- Gregory A. Ellard
- G05 - CONTROLLING REGULATING
Information Patent Grant
Method of degassing biological filters
- Patent number 5,989,427
- Issue date Nov 23, 1999
- Tetra Technologies, Inc.
- Gregory A. Ellard
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method and apparatus for denitrification of wastewater
- Patent number 5,496,472
- Issue date Mar 5, 1996
- Tetra Technologies, Inc.
- David C. Slack
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE