Inventor

WILLKENS CRAIG A

US24 patents

⚠️ This page may combine multiple inventors who share the name “WILLKENS CRAIG A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

WILLKENS CRAIG A

SAINT GOBAIN NORTON IND CERAMI

Composition for small ceramic igniters

Match head ceramic igniter and method of using same

Silicon nitride having a high tensile strength

Ceramic igniter having improved oxidation resistance, and method of using same

Ceramic igniter with hot zone thickness of 0.019 inches or less

Silicon nitride having a high tensile strength

Method of heating a stovetop range using a ceramic igniter

Method of forming ceramic igniters

Ceramic igniters and methods for using and producing same

Method of heating a stovetop range using a continuously energized ceramic igniter having relight capability

Coarse reaction bonded silicon nitride

SAINT GOBAIN CERAMICS

Ceramic igniters

Aging resistant, porous silicon Carbide ceramic igniter

Multiple hot zone igniters

Aging resistant porous silicon carbide ceramic igniter

Compositions for ceramic igniters

Compositions for ceramic igniters

NORTON CO

Process for the manufacture of friable silicon nitride bodies

Silicon nitride vacuum furnace process

Pressure casting ceramic slurries

Fiber-reinforced silicon nitride composite ceramics

Reaction bonded silicon nitride filtration membranes

SAINT GOBAIN NORTON INDUSTRAIL

High voltage ceramic igniter

WILLKENS CRAIG A

Ceramic igniters