03995143 is referenced by 33 patents and cites 12 patents.

A monolithic electrical resistance heater device is produced from placing a semiconducting coating of carbonaceous pyropolymer on the surfaces of a rigid "honeycomb type" of ceramic substrate and connecting electrodes to spaced, opposing portions thereof. The carbonaceous coating, or layer, is formed from heating an organic pyrolyzable substance in contact with the substrate surfaces at a temperature above about 400.degree. C.

Title
Monolithic honeycomb form electric heating device
Application Number
5/513027
Publication Number
3995143
Application Date
October 8, 1974
Publication Date
November 30, 1976
Inventor
George L Hervert
Woodstock
IL, US
Agent
William H Page II
Philip T Liggett
James R Hoatson Jr
Assignee
Universal Oil Products Company
IL, US
IPC
H05B 3/10
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