|SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN category ON category.patent = patent.patent AND category.type = patent.type WHERE (category.class = '310') ORDER BY date ASC, patent, type|
Total of 4 patents found where: Class is '310';
View a patent by clicking on the patent number. You can sort by any of the columns by clicking on the column name.
|T / S||Patent||Date||Description||Patentee||Category||Assigned To|
|U||414,943||November 12, 1889||Method of Utilizing Natural Electric Energy
Method of capturing electric energy from lightning rods and storing in a battery
|DEWEY, Mark W.
||Lightning Energy||The Dewey Corp.|
|U||678,195||July 9, 1901||Third Rail Insulator
Third rail insulator with iron mounting bracket and cap to support the rail
|POTTER, William B.
||Third Rail||General Electric Co.|
|U||1,796,427||March 17, 1931||Process and Apparatus for Testing Insulators
Apparatus to run a high voltage test on insulators (see 1,750,699 and 1,796,427)
|AUSTIN, Arthur O.
||Manufacturing||The Ohio Brass Co.|
|U||2,118,795||May 24, 1938||Insulator
RFI: tin iridized coating to reduce water adherence, radio interference, and reflect sun
|LITTLETON, Jesse T.
||RFI||Corning Glass Works|
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