John David PIERSON

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Newmarket, Ontario, CA

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Patents Grantslast 30 patents

Information Patent Grant
Transition barrier for connecting a permanent barrier to a temporar...
- Patent number 11,585,057
- Issue date Feb 21, 2023
- AMG Metals, Inc.
- John David Pierson
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Apparatus and method for attaching signs to foundation members such...
- Patent number 10,961,671
- Issue date Mar 30, 2021
- AMG Metals, Inc.
- Ben Powell
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Apparatus and method for attaching signs to foundation members such...
- Patent number 10,873,287
- Issue date Dec 22, 2020
- Stinson Equipment Limited
- Ben Powell
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Patents Applicationslast 30 patents

Information Patent Application
APPARATUS AND METHOD FOR ATTACHING SIGNS TO FOUNDATION MEMBERS SUCH...
- Publication number 20200048848
- Publication date Feb 13, 2020
- POWELL (RICHMOND HILL ) CONTRACTING LIMITED
- Ben Powell
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
APPARATUS AND METHOD FOR ATTACHING SIGNS TO FOUNDATION MEMBERS SUCH...
- Publication number 20190242079
- Publication date Aug 8, 2019
- POWELL (RICHMOND HILL ) CONTRACTING LIMITED
- Ben Powell
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
A TRANSITION BARRIER FOR CONNECTING A PERMANENT BARRIER TO A TEMPOR...
- Publication number 20190242080
- Publication date Aug 8, 2019
- John David Pierson
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
APPARATUS AND METHOD FOR ATTACHING SIGNS TO FOUNDATION MEMBERS SUCH...
- Publication number 20180131313
- Publication date May 10, 2018
- Ben POWELL
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER