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...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 4414252 | Spray forming thin films An improved spray booth is provided for use in forming high quality thin films by controlling the spray parameters related to film formation. A spray nozzle design is selected which permits control of the spray footprint on a heated substrate. A projected... | 11/08/1983 |
| 4412091 | Polycrystalline photovoltaic cell A photovoltaic cell having an electrically conductive substrate, which may be glass having a film of conductive tin oxide; a first layer containing a suitable semiconductor, which layer has a first component film with an amorphous structure and a second c... | 10/25/1983 |
| 4404734 | Method of making a CdS/Cux S photovoltaic cell A photovoltaic cell is formed by combining a spray process, forming a crystalline layer containing cadmium and sulfur, and an evaporation process, depositing copper chloride for converting to Cux S. The crystals containing cadmium and sulfur ar... | 09/20/1983 |
| 4362896 | Polycrystalline photovoltaic cell A photovoltaic cell is formed by combining a spray process, forming a crystalline layer containing cadmium and sulfur, and an evaporation process, depositing copper chloride for converting to Cux S. The crystals containing cadmium and sulfur ar... | 12/07/1982 |
| 4344817 | Process for forming tin oxide conductive pattern A pattern of transparent conductive material, such as tin oxide, is formed on a transparent vitreous substrate using a polycrystalline material, such as cadmium or zinc sulfide, to mask the substrate surface while depositing material forming the transpare... | 08/17/1982 |
| 4338078 | Heated conveyor system An improved conveyor assembly is provided for transporting a transparent vitreous substrate along a group of controlled radiative heaters. A plurality of control groups are formed from the radiative heaters and the illumination for the various control gro... | 07/06/1982 |
| 4313022 | Solar cell array An array of photovoltaic cells in a back wall-type configuration supported by a rigid transparent vitreous substrate, such as glass, for admitting incident radiation to the cells. A plurality of cells are interconnected into a desired electrical configura... | 01/26/1982 |
| 4307681 | Apparatus for quality film formation Methods and apparatus are provided for forming films of materials which are component layers of solar energy conversion devices, e.g. photovoltaic cells and heat collector panels. A selected substrate, generally glass, is heated while being sprayed with s... | 12/29/1981 |
| 4304607 | Photovoltaic cell A photovoltaic cell having an electrically conductive substrate, which may be glass having a film of conductive tin oxide; a first layer containing a suitable semiconductor, which layer has a first component film with an amorphous structure and a second c... | 12/08/1981 |
| 4265933 | Photovoltaic cell A large area photovoltaic cell comprising a layer of polycrystalline cadmium sulfide, about 1 to 2 microns thick, formed by simultaneously spraying two suitably selected compounds on a uniformly heated plate of Mesa glass and irradiating the layer of poly... | 05/05/1981 |
| 4262411 | Method of making a solar cell array A method of producing an array of photovoltaic cells responsive to incident radiation by forming heterojunction-forming material layers over a transparent substrate panel having a transparent electrically conductive coating and thereafter removing selecte... | 04/21/1981 |
| 4243432 | Solar cell array An array of photovoltaic cells in a back wall-type configuration supported by a rigid transparent vitreous substrate, such as glass, for admitting incident radiation to the cells. A plurality of cells are interconnected into a desired electrical configura... | 01/06/1981 |
| 4239809 | Method for quality film formation Methods and apparatus are provided for forming films of materials which are component layers of solar energy conversion devices, e. g. photovoltaic cells and heat collector panels. A selected substrate is heated while being sprayed with solutions which re... | 12/16/1980 |
| 4233085 | Solar panel module A solar panel module is provided, wherein a plurality of solar panel units are electrically interconnected and supported within a low cost frame assembly, which may conveniently be formed from wood products. Each solar panel unit is provided with extendin... | 11/11/1980 |
| 4228570 | Electroding preparation apparatus An apparatus is provided for forming a large area photovoltaic cell into a plurality of photovoltaic cells on a common substrate and preparing the individual cells for an overlying layer of conductive material. A tool bit is urged against the polycrystall... | 10/21/1980 |
| 4224355 | Method for quality film formation Methods and apparatus are provided for forming films of materials which are component layers of solar energy conversion devices, e.g. photovoltaic cells and heat collector panels. A selected substrate, generally glass, is heated while being sprayed with s... | 09/23/1980 |
| 4178395 | Methods for improving solar cell open circuit voltage A method for producing a solar cell having an increased open circuit voltage. A layer of cadmium sulfide (CdS) produced by a chemical spray technique and having residual chlorides is exposed to a flow of hydrogen sulfide (H2 S) heated to a temp... | 12/11/1979 |
| 4167805 | Cuprous sulfide layer formation for photovoltaic cell An improved method for fabrication of a photovoltaic cell preferably of the CdS--Cux S type, having a copper electrode adjacent the Cux S. A portion of the CdS is converted to Cux S through ion exchange wherein the CdS is ... | 09/18/1979 |
| 4159914 | Photovoltaic cell A photovoltaic cell having an electrically conductive substrate, which may be glass having a film of conductive tin oxide; a first layer containing a suitable semiconductor, which layer has a first component film with an amorphous structure and a second c... | 07/03/1979 |
| 4104420 | Photovoltaic cell A large area photovoltaic cell comprising a layer of multicrystalline cadmium sulfide, about 1 to 2 microns thick, formed by simultaneously spraying two suitably selected compounds on a uniformly heated plate of Nesa glass, thereafter forming a coating of... | 08/01/1978 |
| 4095006 | Cadmium sulfide film A method of forming a cadmium sulfide film from a solution containing a cadmium salt and a sulfur containing compound comprising inclusion of a chlorine containing compound in the solution utilized to form the cadmium sulfide film.... | 06/13/1978 |
| 4086101 | Photovoltaic cells A method of making low cost photovoltaic cells on a large scale basis by means of a continuous process of coating sheet glass while the sheet glass moves in and has its under surface immersed in a tank of molten material, comprising forming the film of Cd... | 04/25/1978 |
