Tetra Process Technologies a Severn Trent Services Company

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Patents Grantslast 30 patents

Information Patent Grant
Method for backwashing granular media filters and bioreactors
- Patent number 6,461,525
- Issue date Oct 8, 2002
- Tetra Process Technologies
- Greg Ellard
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Underdrain block for filter media system
- Patent number 6,143,188
- Issue date Nov 7, 2000
- Tetra Process Technologies
- Steven Mark Jantsch
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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
Anchor for an underdrain block
- Patent number 6,110,366
- Issue date Aug 29, 2000
- Tetra Process Technologies
- Gary Hunkele
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Method for backwashing granular media filters and bioreactors
- Publication number 20020036177
- Publication date Mar 28, 2002
- Tetra Process Technologies
- Greg Ellard
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Trademarklast 30 trademarks

Information Trademark
76012248 - TETRAPACE
- Serial number 76012248
- Registration number 2509089
- Filing date Mar 29, 2000
- Tetra Process Technologies
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments