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Six-year-old Robert W. Patch granted a patent for a "toy truck".
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| Number | Title | Issue Date |
| 6200357 | Heating medium and use of the same 35 g of a heating medium comprising 70 to 85% of powdered aluminum and 15 to 30% of powdered calcium oxide on the basis of the total weight of the heating medium is contacted with 80 ml of water to react the powdered calcium with water at a first reaction... | 03/13/2001 |
| 4692259 | Water-activated, exothermic chemical deicing formulations A dry, water-activated, exothermic chemical formulation useful as a deicing agent on surfaces, which includes magnesium metal and magnesium oxide, and at least one chloride salt to depress the freezing point of water and prevent the buildup of snow and ic... | 09/08/1987 |
| 4649895 | Exothermic composition Exothermic compositions which contain iron powders treated with sulfur-containing compounds as agents to be oxydized and mugwort leaf dry powders as a part of water holding agents. According to the compositions there are provided body warmers having an ex... | 03/17/1987 |
| 4366804 | Warming device for generating heat by controlled exothermic oxidation of iron powder A warming device in which a mixture of iron powders and metal salts of acids are contained in an inner pouch having gas-permeability and water-permeability, and the inner pouch and a water-carrying member containing water are put in an outer covering body... | 01/04/1983 |
| 4358291 | Solid state renewable energy supply A solid state renewable energy supply is provided by the oxidation of a passivating oxide forming solid state material in the presence of oxygen under the control of a passivating oxide preventing agent forming thereby an oxide reaction product, heat and ... | 11/09/1982 |
| 4119082 | Subaqueous heater apparatus A subaqueous heater apparatus of simple construction adapted for use by a human diver who in underwater activities needs to maintain his vital warmth. The apparatus contains uncombined calcium which under the gradual, controlled supply of water effects ch... | 10/10/1978 |
| 4095583 | Self-contained warming pad A self-contained warming pad characterized by a heating element, an adjacent dose of activating liquid within a frangible container, and a substantially liquid-impervious cover enclosing the element and frangible container and having at least one tortuous... | 06/20/1978 |
| 4080953 | Electrochemical heating device A heating device is taught which includes a subdivided electrochemical cell comprising subdivided metal pieces which serve as the anode and conductive cathode layers coated on the anode pieces. When such coated pieces are enveloped in a liquid electrolyte... | 03/28/1978 |
| 3998749 | Chemical heater formulation and method for generating heat The invention relates to a unique chemical heater formulation for generat heat through the exothermic reduction of cupric chloride by aluminum. The chemical reaction system used in the heater formulation contains a cupric chloride, a wetting agent, water... | 12/21/1976 |
| 3980070 | Heating pack containing a granular chemical composition A heating pack for use with an improved granular chemical composition which produces heat when water is added. The heating pack utilizes an inner and outer bag, the inner bag containing the granular composition and having a closure flap which is partially... | 09/14/1976 |
