Mark Ritchey

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State College, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Above ground containment systems and methods for assembling same
- Patent number 11,046,509
- Issue date Jun 29, 2021
- Tetra Technologies, Inc.
- John Novotny
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Above ground containment systems and methods for assembling same
- Patent number 10,155,622
- Issue date Dec 18, 2018
- Tetra Technologies, Inc.
- John Novotny
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Above ground containment systems and methods for assembling same
- Patent number 9,630,773
- Issue date Apr 25, 2017
- Tetra Technologies, Inc.
- John Novotny
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Portable dam assemblies
- Patent number 9,228,309
- Issue date Jan 5, 2016
- Tetra Technologies, Inc.
- Robert Davis
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Above ground containment systems and methods for assembling same
- Patent number 9,157,205
- Issue date Oct 13, 2015
- Tetra Technologies, Inc.
- John Novotny
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Portable dam assemblies and methods for assembling same
- Patent number 8,640,901
- Issue date Feb 4, 2014
- Tetra Technologies, Inc.
- Robert Davis
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL

Patents Applicationslast 30 patents

Information Patent Application
Portable Dam Assemblies And Methods for Assembling Same
- Publication number 20130020331
- Publication date Jan 24, 2013
- SteelWaterz LLC
- Robert Davis
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING