John R. Barker

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Pawtucket, RI, US

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Patents Grantslast 30 patents

Information Patent Grant
Sheet metal fasteners with multiple spreadable shanks
- Patent number 7,390,156
- Issue date Jun 24, 2008
- ES Products
- John R. Barker
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Sheet metal anchor nail fastener with locking staple
- Patent number 6,095,737
- Issue date Aug 1, 2000
- ES Products
- John Rhodes Barker
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Coil coating of sheet metal to provide localized corrosion protection
- Patent number 5,271,144
- Issue date Dec 21, 1993
- E. S. Products
- John R. Barker
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Sheet metal nails with coated heads
- Patent number 5,125,779
- Issue date Jun 30, 1992
- E. S. Products
- Peter Hallock
- E04 - BUILDING