Search the Insulator Patent Reference Library:

Build your search criteria. The patent must match all the values specified.
Select patent types: Utility   Design   Reissue
Patent number:
Date:
Year between: and
Patentee starting with:
City:
State:
Assigned To starting with:
Description containing:
Category:
Class:    Subclass:
Click Search when complete:
SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN name ON name.patent = patent.patent AND name.type = patent.type WHERE (category = 'Oil') ORDER BY last_name DESC, first_name, date, patent, type

Total of 10 patents found where: Category is 'Oil';

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
 WINSLOW, George H.
U Specimen known 524,659 August 14, 1894 Insulator
Oil cup with means to support the cup from the insulator (see 517,634)		 WINSLOW, George H.
 Oil  
 WEILL, Robert
U 1,944,383 January 23, 1934 Oil Bath Insulator
Oil type insulator using oil cup attached to edge of insulator and protective cover attached to prevent contamination from fog or rain		 WEILL, Robert
 Oil  
 VARLEY, Cromwell F.
U 76,960 April 21, 1868 Improvement in Insulators for Telegraphs
Oil, wax or rubber saturated insulator to improve same (Brown p. 57)		 VARLEY, Cromwell F.
 Oil  
 STEINBERGER, Louis
U 839,666 December 25, 1906 Built up Insulator
Oil used in hidden reservoir of multipart insulator made of Electrose		 STEINBERGER, Louis
 Oil  
 SIMONDS, W. Edgar
U 71,418 November 26, 1867 Improvement in Telegraph Insulators
Cup under insulator (similar to oil insulator) to maintain dry surfaces (see reissue 3,499 on 6-8-1869) Patent was used by Central Electric Co.		 SIMONDS, W. Edgar
 Oil  
 JOHNSON, Walter C.
PHILLIPS, Samuel E.
U Specimen known 201,615 March 26, 1878 Improvement in Insulators for Telegraph Wires
Oil cup insulator		 JOHNSON, Walter C.
PHILLIPS, Samuel E.
 Oil  
 HEWETT, Robert J.
U 461,631 October 20, 1891 Insulating Support for Electric Conductors
Oil insulator		 HEWETT, Robert J.
 Oil  
 CROUNSE, Albert B.
RUTLEDGE, Charles A.
U 519,446 May 8, 1894 Trolley Wire Hanger
Glass oil insulator used in trolley wire hanger		 CROUNSE, Albert B.
RUTLEDGE, Charles A.
 Oil  
 COUSENS, Alfred C.
U 506,002 October 3, 1893 Insulating Support for Metallic Circuits
Oil cup insulator to support short crossarm for two insulators		 COUSENS, Alfred C.
 Oil Charles Stone
 CHESNEY, Cummings C.
U 771,297 October 4, 1904 Insulator
Oil reservoir for transformer insulator		 CHESNEY, Cummings C.
 Oil Stanley Electric Mfg. Co.

Total of 0.01 seconds