Stephen Cecil Grigory

Follow

Person

San Antonio, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Method and system for repairing a damaged plastic pipe
- Patent number 6,004,412
- Issue date Dec 21, 1999
- Gas Research Institute
- Stephen Cecil Grigory
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Apparatus and method for sealing a damaged pipe
- Patent number 5,954,095
- Issue date Sep 21, 1999
- Gas Reasearch Institute
- Stephen Cecil Grigory
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Apparatus and method for remotely sealing a damaged pipe
- Patent number 5,920,976
- Issue date Jul 13, 1999
- Gas Research Institute
- Stephen Cecil Grigory
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...