PATENTS RELATED TO ELECTRIC BLANKETS

Professor Demchick's Patent Services

Paul H. Demchick, United States Registered Patent Agent
(United States Patent and Trademark Office Registration 52,808)

PATENTS RELATED TO ELECTRIC BLANKETS

Although it is certainly possible for a patent agent to do a patent search, prepare a patent application or handle a patent prosecution even if the patent agent does not have personal experience related to the subject matter of the invention, personal experience is a nice "plus." Dr. Demchick and his family keep to temperature in the house low at night during the cold weather. Electric blankets keep them warm.

Dr. Demchick is a scientist with a quarter of a century of research experience in academic, industrial and governmental settings.
If you are considering patent protection for an invention, Dr. Demchick will be glad to discuss the matter with you. There is no charge for an initial discussion.
The following sampling is to give you some sense of the types of electric blankets related inventions which have received United States patent protection. The patent list is not exhaustive and is certainly not a substitute for a proper patent search . It should be noted that only U.S. Patents are included.
It should be noted that spelling, form and typographical errors in the original patents are preserved here.
p>Controller and heating wire capable of preventing generation of electromagnetic waves (United States Patent 7,151,241)
Apparatus for delivery of induction heating to a workpiece (United States Patent 7,122,770)
Electric blanket and system and method for making an electric blanket (United States Patent 7,115,842)
Electric load control device of heating device of heating blanket (United States Patent 7,064,294)
Electric blanket with digital temperature sensors (United States Patent 7,019,262)
Control device for electric blanket (United States Patent 7,009,152)
Flexible apparatus cover providing electrical shock upon contact (United States Patent 6,925,748)
Digital control air heating electric blanket (United States Patent 6,914,216)
Low voltage power supply system for an electric blanket or the like (United States Patent 6,888,108)
Electric blanket and system and method for making an electric blanket (United States Patent 6,770,854)
PWM controller for DC powered heating blanket (United States Patent 6,770,853)
Method and apparatus for delivery of induction heating to a workpiece (United States Patent 6,727,483)
Heating element arrangement for an electric blanket or the like (United States Patent 6,713,724)
Heater for electric blanket (United States Patent 6,689,989)
Warming blanket with heat reflective strips (United States Patent 6,664,512)
Electrically heated blanket (United States Patent 6,617,550)
Electric heating blanket control circuit assembly (United States Patent 6,563,090)
Safety circuit for heating devices using PTC wire (United States Patent 6,355,912)
Heating blankets and the like (United States Patent 6,310,332)
Electric blanket and control (United States Patent 6,222,162)
Thermal filter blanket (United States Patent 6,177,658)
Low magnetic field emitting electric blanket (United States Patent 6,153,856)
Heating apparatus and circuit control (United States Patent 6,097,009)
Method for preparation of fused magnesia particulates (United States Patent 5,926,499)
Device for reducing low frequency electromagnetic fields in an electric blanket and method (United States Patent 5,912,811)
Electric blanket having reduced electromagnetic field (United States Patent 5,837,971)
Positive pressure filter system for inflatable blanket heaters (United States Patent 5,785,723)
Resettable safety circuit for PTC electric blankets and the like (United States Patent 5,770,836)
Apparatus and method of toner transfer using non-marking toner (United States Patent 5,737,677)
Radio-frequency absorbing fin blanket (United States Patent 5,731,777)
CMOS integrated circuit with reduced susceptibility to PMOS punchthrough (United States Patent 5,688,722)
CMOS integrated circuit with reduced susceptibility to PMOS punchthrough (United States Patent 5,682,051)
Water-wave energy converter systems (United States Patent 5,507,943)
Electric blanket system with reduced electromagnetic field (United States Patent 5,410,127)
Electrically heated panels (United States Patent 5,403,992)
Isopropyl alcohol vapor dryer system (United States Patent 5,371,950)
Apparatus for the integral sprinkling of liquids laden with solid materials in suspension (United States Patent 5,292,070)
Surface heating blanket for soil remediation (United States Patent 5,229,583)
Elimination of potentially harmful electrical and magnetic fields from electric blankets and other electrical appliances (United States Patent 5,218,185)
Apparatus for nuclear transmutation and power production using an intense accelerator-generated thermal neutron flux (United States Patent 5,160,696)
Electric surface heating and apparatus therefor (United States Patent 5,151,577)
Method of fabricating a CMOS IC with reduced susceptibility to PMOS punchthrough (United States Patent 5,122,474)
Cold cap subsidence for in situ vitrification and electrodes therefor (United States Patent 5,100,259)
Process for excavating trenches with a rounded bottom in a silicon substrate for making trench isolation structures (United States Patent 5,068,202)
Method for reducing hazards due to low frequency electric and magnetic fields (United States Patent 5,036,177)
Fibrous heating element (United States Patent 4,983,814)
CMOS integrated circuit with reduced susceptibility to PMOS punchthrough (United States Patent 4,943,537)
Bag making apparatus with automatic compensation system (United States Patent 4,934,993)
Passenger covering for motor vehicle or the like (United States Patent 4,923,211)
Convertible hospital bed (United States Patent 4,787,104)
Electro hydrodynamic method for the preparation of a thin semiconductor film (United States Patent 4,770,738)
Electric melter for high electrical resistivity glass materials (United States Patent 4,737,966)
Electrically heated hose employing a hose simulator for temperature control (United States Patent 4,725,713)
Electric blankets (United States Patent 4,684,785)
Electrical therapeutic assembly and method for reducing pain and edema in a human body (United States Patent 4,664,118)
Electric blanket (United States Patent 4,659,905)
Bed warmer with a body temperature sensor for stopping a higher preset temperature (United States Patent 4,656,334)
Waterbed mattress heater (United States Patent 4,652,726)
Automatic rib cuff machine (United States Patent 4,644,883)
Electric blanket (United States Patent 4,633,062)
Electric heating appliance (United States Patent 4,626,657)
Blanket wire insertion machine (United States Patent 4,625,394)
Blanket wire cord connector module (United States Patent 4,585,922)
Apparatus for heating an engine using a dual-position continuous flow valve assembly (United States Patent 4,579,095)
Temperature controller for providing a rapid initial heating cycle using a variable reference voltage (United States Patent 4,549,074)
Blanket garment wrap (United States Patent 4,534,065)
Heating circuit with overheat safety control feature (United States Patent 4,491,723)
Automatic temperature control device for an electric appliance such as an electric blanket (United States Patent 4,485,296)
Flocked electric blanket construction (United States Patent 4,459,461)
Charge-retention storage battery (United States Patent 4,439,501)
Electric blanket safety circuit (United States Patent 4,436,986)
Electric blanket heating control with capacitance sensing (United States Patent 4,359,626)
Heater with reinforcing strate (United States Patent 4,358,668)
Portable auxiliary warming room apparatus (United States Patent 4,354,091)
Frame for electric blanket support (United States Patent 4,353,140)
Electric furnace insulation module (United States Patent 4,341,916)
Blanket wire utilizing positive temperature coefficient resistance heater (United States Patent 4,309,597)
Safety circuit for electric bedcover (United States Patent 4,281,237)
Heating circuits (United States Patent 4,278,874)
Fire detection and extinguishing systems (United States Patent 4,276,939)
Blanket wire utilizing positive temperature coefficient resistance heater (United States Patent 4,271,350)
Heater with reinforcing strate (United States Patent 4,270,040)
Heating circuits (United States Patent 4,251,717)
Water bed heater (United States Patent 4,220,848)
Electric heating system for controlling temperature of pipes to prevent freezing and condensation (United States Patent 4,214,147)
Glass melting furnace and method (United States Patent 4,184,863)
Process for glass melting (United States Patent 4,135,905)
Heating and cooling blanket (United States Patent 4,132,262)
Driven squeegee carriage and magnetic beam backup (United States Patent 4,090,443)
Method of making electric blanket shell (United States Patent 4,070,217)
Fluid-wall reactor for high temperature chemical reaction processes (United States Patent 4,057,396)
Alkaline glass melting with porous cover (United States Patent 4,046,544)
Electric blanket control circuit (United States Patent 4,034,185)
Electric blanket (United States Patent 4,031,352)
Electric blanket shell and method of production (United States Patent 3,973,066)
Controller and heating wire capable of preventing generation of electromagnetic waves (United States Patent 7,151,241)
Apparatus for delivery of induction heating to a workpiece (United States Patent 7,122,770)
Electric blanket and system and method for making an electric blanket (United States Patent 7,115,842)
Electric load control device of heating device of heating blanket (United States Patent 7,064,294)
Electric blanket with digital temperature sensors (United States Patent 7,019,262)
Control device for electric blanket (United States Patent 7,009,152)
Flexible apparatus cover providing electrical shock upon contact (United States Patent 6,925,748)
Digital control air heating electric blanket (United States Patent 6,914,216)
Low voltage power supply system for an electric blanket or the like (United States Patent 6,888,108)
Electric blanket and system and method for making an electric blanket (United States Patent 6,770,854)
PWM controller for DC powered heating blanket (United States Patent 6,770,853)
Method and apparatus for delivery of induction heating to a workpiece (United States Patent 6,727,483)
Heating element arrangement for an electric blanket or the like (United States Patent 6,713,724)
Heater for electric blanket (United States Patent 6,689,989)
Warming blanket with heat reflective strips (United States Patent 6,664,512)
Electrically heated blanket (United States Patent 6,617,550)
Electric heating blanket control circuit assembly (United States Patent 6,563,090)
Safety circuit for heating devices using PTC wire (United States Patent 6,355,912)
Heating blankets and the like (United States Patent 6,310,332)
Electric blanket and control (United States Patent 6,222,162)
Thermal filter blanket (United States Patent 6,177,658)
Low magnetic field emitting electric blanket (United States Patent 6,153,856)
Heating apparatus and circuit control (United States Patent 6,097,009)
Method for preparation of fused magnesia particulates (United States Patent 5,926,499)
Device for reducing low frequency electromagnetic fields in an electric blanket and method (United States Patent 5,912,811)
Electric blanket having reduced electromagnetic field (United States Patent 5,837,971)
Positive pressure filter system for inflatable blanket heaters (United States Patent 5,785,723)
Resettable safety circuit for PTC electric blankets and the like (United States Patent 5,770,836)
Apparatus and method of toner transfer using non-marking toner (United States Patent 5,737,677)
Radio-frequency absorbing fin blanket (United States Patent 5,731,777)
CMOS integrated circuit with reduced susceptibility to PMOS punchthrough (United States Patent 5,688,722)
CMOS integrated circuit with reduced susceptibility to PMOS punchthrough (United States Patent 5,682,051)
Water-wave energy converter systems (United States Patent 5,507,943)
Electric blanket system with reduced electromagnetic field (United States Patent 5,410,127)
Electrically heated panels (United States Patent 5,403,992)
Isopropyl alcohol vapor dryer system (United States Patent 5,371,950)
Apparatus for the integral sprinkling of liquids laden with solid materials in suspension (United States Patent 5,292,070)
Surface heating blanket for soil remediation (United States Patent 5,229,583)
Elimination of potentially harmful electrical and magnetic fields from electric blankets and other electrical appliances (United States Patent 5,218,185)
Apparatus for nuclear transmutation and power production using an intense accelerator-generated thermal neutron flux (United States Patent 5,160,696)
Electric surface heating and apparatus therefor (United States Patent 5,151,577)
Method of fabricating a CMOS IC with reduced susceptibility to PMOS punchthrough (United States Patent 5,122,474)
Cold cap subsidence for in situ vitrification and electrodes therefor (United States Patent 5,100,259)
Process for excavating trenches with a rounded bottom in a silicon substrate for making trench isolation structures (United States Patent 5,068,202)
Method for reducing hazards due to low frequency electric and magnetic fields (United States Patent 5,036,177)
Fibrous heating element (United States Patent 4,983,814)
CMOS integrated circuit with reduced susceptibility to PMOS punchthrough (United States Patent 4,943,537)
Bag making apparatus with automatic compensation system (United States Patent 4,934,993)
Passenger covering for motor vehicle or the like (United States Patent 4,923,211)
Convertible hospital bed (United States Patent 4,787,104)
Electro hydrodynamic method for the preparation of a thin semiconductor film (United States Patent 4,770,738)
Electric melter for high electrical resistivity glass materials (United States Patent 4,737,966)
Electrically heated hose employing a hose simulator for temperature control (United States Patent 4,725,713)
Electric blankets (United States Patent 4,684,785)
Electrical therapeutic assembly and method for reducing pain and edema in a human body (United States Patent 4,664,118)
Electric blanket (United States Patent 4,659,905)
Bed warmer with a body temperature sensor for stopping a higher preset temperature (United States Patent 4,656,334)
Waterbed mattress heater (United States Patent 4,652,726)
Automatic rib cuff machine (United States Patent 4,644,883)
Electric blanket (United States Patent 4,633,062)
Electric heating appliance (United States Patent 4,626,657)
Blanket wire insertion machine (United States Patent 4,625,394)
Blanket wire cord connector module (United States Patent 4,585,922)
Apparatus for heating an engine using a dual-position continuous flow valve assembly (United States Patent 4,579,095)
Temperature controller for providing a rapid initial heating cycle using a variable reference voltage (United States Patent 4,549,074)
Blanket garment wrap (United States Patent 4,534,065)
Heating circuit with overheat safety control feature (United States Patent 4,491,723)
Automatic temperature control device for an electric appliance such as an electric blanket (United States Patent 4,485,296)
Flocked electric blanket construction (United States Patent 4,459,461)
Charge-retention storage battery (United States Patent 4,439,501)
Electric blanket safety circuit (United States Patent 4,436,986)
Electric blanket heating control with capacitance sensing (United States Patent 4,359,626)
Heater with reinforcing strate (United States Patent 4,358,668)
Portable auxiliary warming room apparatus (United States Patent 4,354,091)
Frame for electric blanket support (United States Patent 4,353,140)
Electric furnace insulation module (United States Patent 4,341,916)
Blanket wire utilizing positive temperature coefficient resistance heater (United States Patent 4,309,597)
Safety circuit for electric bedcover (United States Patent 4,281,237)
Heating circuits (United States Patent 4,278,874)
Fire detection and extinguishing systems (United States Patent 4,276,939)
Blanket wire utilizing positive temperature coefficient resistance heater (United States Patent 4,271,350)
Heater with reinforcing strate (United States Patent 4,270,040)
Heating circuits (United States Patent 4,251,717)
Water bed heater (United States Patent 4,220,848)
Electric heating system for controlling temperature of pipes to prevent freezing and condensation (United States Patent 4,214,147)
Glass melting furnace and method (United States Patent 4,184,863)
Process for glass melting (United States Patent 4,135,905)
Heating and cooling blanket (United States Patent 4,132,262)
Driven squeegee carriage and magnetic beam backup (United States Patent 4,090,443)
Method of making electric blanket shell (United States Patent 4,070,217)
Fluid-wall reactor for high temperature chemical reaction processes (United States Patent 4,057,396)
Alkaline glass melting with porous cover (United States Patent 4,046,544)
Electric blanket control circuit (United States Patent 4,034,185)
Electric blanket (United States Patent 4,031,352)
Electric blanket shell and method of production (United States Patent 3,973,066)
Controller and heating wire capable of preventing generation of electromagnetic waves (United States Patent 7,151,241)
Apparatus for delivery of induction heating to a workpiece (United States Patent 7,122,770)
Electric blanket and system and method for making an electric blanket (United States Patent 7,115,842)
Electric load control device of heating device of heating blanket (United States Patent 7,064,294)
Electric blanket with digital temperature sensors (United States Patent 7,019,262)
Control device for electric blanket (United States Patent 7,009,152)
Flexible apparatus cover providing electrical shock upon contact (United States Patent 6,925,748)
Digital control air heating electric blanket (United States Patent 6,914,216)
Low voltage power supply system for an electric blanket or the like (United States Patent 6,888,108)
Electric blanket and system and method for making an electric blanket (United States Patent 6,770,854)

Although his recognition as a registered patent agent permits him to represent others in all patent matters before the United States Patent and Trademark Office, Dr. Demchick limits his practice to patent matters involving inventions for which he is confident that his expertise will allow him to serve his client well. He will gladly discuss whether he is comfortable handling cases involving inventions in a particular field. He will err on the side of declining cases if he has uncertainty about his ability to do what is needed in the case. Dr. Demchick does not represent clients in court. However, he refers clients to a patent attorney who does represent others in court, if it appears likely that patent related representation in court is appropriate. Dr. Demchick prepares and files non-provisional (regular) patent applications and provisional patent applications. He prepares and files utility patent applications and design patent applications. He prepares and files U.S. patent applications and international patent applications under the Patent Cooperation Treaty (PCT). He prepares and files applications to enter the U.S. National Phase for inventions for which international patent applications (PCT) were already filed. One of the matters he discusses with each client or potential client is which type of application(s) best meets that client's needs. He usually does a patent search (patentability search) as part of the preparation of a patent application. He discusses the value of patent searching with each inventor before agreeing to prepare a patent application for that inventor.