Discharge of lightning with ultrashort laser pulses
Patent 5175664 Issued on December 29, 1992. Estimated Expiration Date: 
December 5, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 5, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3584260 Laser lightning rod system Patent #: 4017767 InventorsApplicationNo. 804268 filed on 12/05/1991US Classes:361/213, By charged gas irradiation361/117High voltage dissipation (e.g., lightning arrester)ExaminersPrimary: Pellinen, A. D.Assistant: Krishnan, Aditya International ClassH02H 003/22AbstractAn arrangement for discharge of electricity or lightning in the atmosphere to prevent formation of space charges that would reduce the strength of electric fields therein by transmitting through a path in the atmosphere one or more first leaser pulses of wavelength essentially within the ultraviolet range and of duration sufficient to create an electrically conductive ionized channel in the atmosphere and simultaneously transmit in said path one or more second laser pulses of longer wavelength than the ultraviolet pulses to maintain the conductivity of the channel for a time long enough for lightning to occur therein. | |
