...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 4134354 | Method of making a container A drawn and ironed easily hand-held metallic container construction is provided and has a central longitudinal axis, a sidewall, and a high-performance bottom wall. The bottom wall has a first substantially frustoconical portion adjoining the sidewall and... | 01/16/1979 |
| 4099475 | Method of trouble-shooting can presses A method of trouble-shooting wherein an increase in a can's body and neck failures is correlated with prior failure-mode experience and used to indicate corresponding types of can-press malfunctions.... | 07/11/1978 |
| 4091291 | System for underground distribution of electrical power and electrical cable construction for use therein A system for the underground distribution of electrical power is provided and includes an electrical cable construction particularly adapted for use underground; and, the cable construction has a central conductor, a tubular insulator system for the condu... | 05/23/1978 |
| 4089453 | Soldered tube end An initially loose fitting aluminum sleeve is pre-tinned with fluxless solder and, while the solder is molten, is swaged down and rotated to form a tight soldered joint connecting two aluminum tube ends, or an aluminum tube end to a copper tube end.... | 05/16/1978 |
| 4090011 | Armor 1. Armor possessing high resistance to penetration, comprising a metallic composite having a layer of aluminous metal bonded to a layer of a precipitation-hardenable ferrous alloy, said composite in bonded condition being susceptible to a thermal hardenin... | 05/16/1978 |
| 4082907 | Thin molybdenum coatings on aluminum for solar energy absorption A thin, adherent coating is described that is highly absorptive to solar energy and has a low emissivity for thermal energy, thereby being a useful selective surface for solar energy collection. This coating is formed on aluminum and its alloys by a simpl... | 04/04/1978 |
| 4081294 | Avoiding type A luder lines in forming sheet made of an Al-Mg alloy Improved alloy compositions for making sheet products, and related method aspects, based on adding zinc to Al-Mg alloys in an amount effective to avoid Type A Luder lines when cold working such sheet in annealed condition.... | 03/28/1978 |
| 4081021 | Semi-continuous direct chill casting apparatus Casting apparatus comprising means for feeding molten material, a mold receiving the molten material in which the molten material solidifies forming a casting advancing through the mold, a cylinder, means including a piston operable in the cylinder ahead ... | 03/28/1978 |
| 4074483 | Apparatus for holding panels in a window construction Apparatus for holding a plurality of three panels in a window construction is provided and comprises a horizontally disposed rail having a substantially U-shaped channel for receiving a lower end portion of a first panel therewithin with the U-shaped chan... | 02/21/1978 |
| 4072599 | Carbon electrodes having stabilized binders derived from the entire organic fraction of bituminous coal Carbon electrodes, either prebaked or Soderberg, made with coal or petroleum coke aggregate and an industrially stable binder that is derived from the entire organic fraction of bituminous coal and is suitable for manufacturing carbon electrodes according... | 02/07/1978 |
| 4069862 | Continuous casting mold with horizontal inlet A non-turbulent, level pour feeding of molten metal into a continuous-casting mold is provided through inlets formed in heat insulated blocks positioned at opposite shorter sides of the mold for casting large rectangular aluminum ingots. The heights of in... | 01/24/1978 |
| 4068440 | Framing joint construction and clip therefor A framing joint construction and clip therefor which is readily assembled as a structural system. A base frame member is outfitted with a plurality of clips along a horizontally extending support surface vertically spaced from a foundation-engaging surfac... | 01/17/1978 |
| 4063732 | Ball bat A ball bat is provided and comprises a body member which terminates a tone end with a hollow handle portion having a pair of aligned holes, a knob fitted to the handle portion and having a pair of aligned holes in aligned relationship with the aligned hol... | 12/20/1977 |
| 4060286 | Wear resistant drill pipe collar and method of making same A wear-resistant drill pipe collar and method of making same are provided wherein such collar has at least one annular groove defined therein and such groove has cooperating surfaces which hold a plurality of easily installed and removed wear-resistant in... | 11/29/1977 |
| 4054048 | Rotary metal extrusion apparatus A rotary metal extrusion apparatus comprises a rotatable drum having a circumferential groove around its outer edge. A shoe, fixed relative to the drum, projects into the groove to form an elongated passageway having one end blocked by an abutment mounted... | 10/18/1977 |
| 4054229 | Container A container is provided and comprises a deformable metallic container body adapted to contain a product therein and having a bottom wall and a side wall which has an a tubular upper portion terminating in an open end and a deformable metallic closure for ... | 10/18/1977 |
| 4054207 | Package construction A plurality of disposable sealed containers having top annular flanges are supported by their flanges in spaced relation in a protective tray.... | 10/18/1977 |
| 4054203 | Carton and blank for making same A carton and blank for making same are provided wherein such carton is particularly adapted to contain a bottle having a lower main body and an upwardly extending elongated neck and the carton has a reinforcing flap in the upper portion thereof with such ... | 10/18/1977 |
| 4045537 | Process for recovering soda and alumina values from red mud A process is disclosed for recovering the caustic and alumina values from high iron-containing Bayer red mud utilizing the so-called lime-soda-sinter process wherein a carbonaceous material such as coke is included in the sintering operation and leaching ... | 08/30/1977 |
| 4044220 | Resistance welding electrode and method of making In a method of making a resistance welding electrode of the type having a copper or copper-base alloy body member and a coating on a surface portion of the body member, the coating defining an outer work-contacting surface of the electrode, and the coatin... | 08/23/1977 |
| 4039480 | Hollow ceramic balls as automotive catalysts supports A method for producing essentially spherical dry pellets largely comprising combustible materials, a method for using the pellets as cores by uniformly coating them with a ceramic-forming powder and sintering the powder to volatilize the combustible core ... | 08/02/1977 |
| 4033757 | Carbothermic reduction process A carbothermic process for the production of aluminum contaminated with no more than about 10 weight percent of aluminum carbide is disclosed which involves charging alumina values and carbon values into a furnace and subjecting only a minor portion of sa... | 07/05/1977 |
| 4032047 | Liquid dispensing container construction A liquid dispensing container construction particularly adapted to dispense a liquid, such as a carbonated beverage for example, under gaseous pressure is provided and comprises a housing defining a product chamber for the liquid with the housing comprisi... | 06/28/1977 |
| 4023841 | Bumper construction and method of making same A bumper construction for a motor vehicle and method of making same is provided wherein such construction comprises a plurality of elongated metal members each having a plurality of integral expanded metal weblike spacers extending therefrom toward an adj... | 05/17/1977 |
| 4021523 | Method of extruding plastic film A method of extruding plastic film is provided which employs a die comprising a die body having an inlet therein for receiving a plastic melt under pressure and having an annulus in the die in flow communication with the inlet and having a discharge orifi... | 05/03/1977 |
| 4021192 | Furnace system for and method of melting and preheating metal This invention provides a furnace system for and method of melting metal charges which utilizes hot gases generated by a burner, and are ordinarily discharged from the furnace as waste, for the dual purpose of preheating metal to be subsequently melted an... | 05/03/1977 |
| 3992602 | Resistance welding apparatus and method In combination with conventional apparatus for joining members of aluminum or other electrically conducting material by resistance welding, adjustable supports for arranging the work-contacting electrodes in spaced proximity to the work, and circuitry for... | 11/16/1976 |
| 3991878 | Roll end support structure and dispensing carton A roll end support for a dispensing carton for sheet material and carton produced therefrom. A dispenser roll having sheet material wound on a hollow core is disposed within a carton and is supported by a pair of support assemblies located at opposite end... | 11/16/1976 |
| 3980537 | Production of aluminum-silicon alloys in an electrolytic cell A method of achieving improved operation of aluminum reduction cells being used to produce aluminum-silicon alloys, and related aspects of introducing silica and alumina to supply the requirements thereof to obtain an alloy of the desired silicon content.... | 09/14/1976 |
| 3975187 | Treatment of carbothermically produced aluminum A process is set forth for reducing the aluminum carbide content of aluminum produced via carbothermic processes which comprises contacting the aluminum contaminated with aluminum carbide with reactive gases so as to cause the aluminum carbide to react an... | 08/17/1976 |
| 3973921 | Non-detachable tab stock An aluminum-alloy tab stock, useful for non-detachable tabs having high yield strength and high bending endurance, and a process for manufacture thereof from a heat treatable core aluminum alloy and a non-heat treatable cladding aluminum alloy by arrangin... | 08/10/1976 |
| 3971873 | Method of producing high brightness corrosion resistant finish on the surface of aluminum and its alloys Automotive vehicle bumpers and other articles made of heat-treatable age hardenable aluminum base alloys and having a high spectral reflectance of the order of 95-99% are obtained by applying to the surface of the article which has been previously bright-... | 07/27/1976 |
| 3967750 | Easy-open wall An easy-open wall for a container and associated tab is provided and comprises an approximately U-shaped score line in the wall with the score line having a bight and a pair of extensions extending from the bight and having arcuate end lengths terminating... | 07/06/1976 |