Jason Johnston

Follow

Person

Edmonton, CA

People

Patents Grantslast 30 patents

Information Patent Grant
Protective device for a culvert pipe
- Patent number 9,422,693
- Issue date Aug 23, 2016
- WESTMAN STEEL INDUSTRIES
- Jason Johnston
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Patents Applicationslast 30 patents

Information Patent Application
Protective Device for a Culvert Pipe
- Publication number 20160097187
- Publication date Apr 7, 2016
- Westman Steel Industries
- Jason Johnston
- E03 - WATER SUPPLY SEWERAGE