John E. Ehrreich

Person

Wayland, MA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Polymer compositions containing chlorided conductive particles
- Patent number 5,843,342
- Issue date Dec 1, 1998
- Ercon, Inc.
- John Ehrreich
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Force sensor
- Patent number 5,305,644
- Issue date Apr 26, 1994
- Ercon, Inc.
- John Ehrreich
- G01 - MEASURING TESTING
Information Patent Grant
Polymer composition containing chlorided conductive particles
- Patent number 5,207,950
- Issue date May 4, 1993
- Ercon, Inc.
- John Ehrreich
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for forming a force sensor
- Patent number 5,194,205
- Issue date Mar 16, 1993
- Ercon, Inc.
- John Ehrreich
- G01 - MEASURING TESTING
Information Patent Grant
Conductive compositions
- Patent number 4,836,955
- Issue date Jun 6, 1989
- Ercon, Inc.
- John E. Ehrreich
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
One-component, particle-filled compositions
- Patent number 4,786,437
- Issue date Nov 22, 1988
- Ercon, Inc.
- John E. Ehrreich
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Conductive compositions and conductive powders for use therein
- Patent number 4,716,081
- Issue date Dec 29, 1987
- Ercon, Inc.
- John E. Ehrreich
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
One-component, particle-filled compositions
- Patent number 4,683,082
- Issue date Jul 28, 1987
- Ercon, Inc.
- John E. Ehrreich
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Particle filled flexible coating composition of aromatic polyester...
- Patent number 4,592,961
- Issue date Jun 3, 1986
- Ercon, Inc.
- John E. Ehrreich
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Conductive compositions
- Patent number 4,435,214
- Issue date Mar 6, 1984
- Ercon, Inc.
- John E. Ehrreich
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Novel electroconductive compositions and powder for use therein
- Patent number 4,407,674
- Issue date Oct 4, 1983
- Ercon, Inc.
- John E. Ehrreich
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Novel electroconductive compositions and powder for use therein
- Patent number 4,319,920
- Issue date Mar 16, 1982
- Ercon, Inc.
- John E. Ehrreich
- B22 - CASTING POWDER METALLURGY

John E. Ehrreich

Person

Patents Grantslast 30 patents

Polymer compositions containing chlorided conductive particles

Force sensor

Polymer composition containing chlorided conductive particles

Process for forming a force sensor

Conductive compositions

One-component, particle-filled compositions

Conductive compositions and conductive powders for use therein

One-component, particle-filled compositions

Particle filled flexible coating composition of aromatic polyester...

Conductive compositions

Novel electroconductive compositions and powder for use therein

Novel electroconductive compositions and powder for use therein