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Class Information
Number: 219/552
Name: Electric heating > Heating devices > With heating unit structure > Heating element structure
Description: Subject matter wherein the heating unit structure comprises significant details of a particular resistance or other type heating element.










Sub-classes under this class:

Class Number Class Name Patents
219/553 Of particular construction and/or material (e.g., infrared generator) 704


Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
8704140 Heating element and its application Apr. 22, 2014
8637796 Electrical heating device and heat generating element of an electrical heating device Jan. 28, 2014
8592732 Resistive heating device for fabrication of nanostructures Nov. 26, 2013
8569663 Small-sized pool and PTC heater for internal liquid heating Oct. 29, 2013
8563904 Heated eyelash curler Oct. 22, 2013
8552342 Heater and image heating apparatus including the same Oct. 8, 2013
8550611 Heat element configuration for a reservoir heater Oct. 8, 2013
8525079 Flat heating element Sep. 3, 2013
8523045 Method of joining copper conductors Sep. 3, 2013
8519306 Glow plug Aug. 27, 2013
8471179 Ceramic heater Jun. 25, 2013
8466392 Material and heating cable Jun. 18, 2013
8450663 Electrical heating element for vertical installation May. 28, 2013
8440943 Heating resistor element component and method of manufacturing heating resistor element component May. 14, 2013
8420985 Mirror and window de-fogging device Apr. 16, 2013
8415593 Micro-heaters and methods of manufacturing the same Apr. 9, 2013
8399814 Heating assemblies providing a high degree of uniformity over a surface area Mar. 19, 2013
8395086 Heater device Mar. 12, 2013
8395096 Precision strip heating element Mar. 12, 2013
8383995 Flexible hot plate and cooking unit Feb. 26, 2013
8378273 Ceramic heater and glow plug Feb. 19, 2013
8362401 Heater Jan. 29, 2013
8344295 Nanosoldering heating element Jan. 1, 2013
8319156 System for heating a vapor cell Nov. 27, 2012
8309894 Triac control of positive temperature coefficient (PTC) heaters in room air conditioners Nov. 13, 2012
8304701 Ceramic heater and method for making the same Nov. 6, 2012
8283602 Heating blanket Oct. 9, 2012
8283612 Heated planar element Oct. 9, 2012
8278602 Heating element for steering wheel Oct. 2, 2012
8278605 Multiple stage open coil electric resistance heater with balanced coil arrangement and heater cool end termination and method of use Oct. 2, 2012
8258444 Front cover for vehicle lighting fixture, method of manufacturing the front cover, and electric heating structure Sep. 4, 2012
8258443 Heating unit for warming pallets Sep. 4, 2012
8253071 Flat heating element Aug. 28, 2012
8217319 Heating cartridge and thermostatic element including same Jul. 10, 2012
8217308 Heater-equipped seat Jul. 10, 2012
8188406 Steering wheel planar heat generating element May. 29, 2012
8158202 Honeycomb structure and method for manufacturing same Apr. 17, 2012
8153938 Added electrical heater for a heating system or air conditioner of a motor vehicle Apr. 10, 2012
8153940 Flat heater including conductive non-woven cellulose material Apr. 10, 2012
8106338 Flat heating element Jan. 31, 2012
8092000 Heat element configuration for a reservoir heater Jan. 10, 2012
8053710 Method of making a heating element of the molybdenum silicide type and a heating element Nov. 8, 2011
8014653 O-ring seals for spa heater element Sep. 6, 2011
8013278 Ceramic heater and glow plug Sep. 6, 2011
8008606 Composite heating element with an integrated switch Aug. 30, 2011
8008607 Methods of forming a variable watt density layered heater Aug. 30, 2011
7947933 Ceramic heater and method for manufacture thereof May. 24, 2011
7947932 Open coil electric resistance heater with offset coil support and method of use May. 24, 2011
7919734 Method for manufacturing ceramic heater and ceramic heater Apr. 5, 2011
7910864 PTC heating element Mar. 22, 2011

1 2 3 4 5 6 7 8










 
 
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