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 (residence = 'Richmond, VA') ORDER BY date ASC, patent, type

Total of 4 patents found where: Residence is 'Richmond, VA';

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
 1855
U Specimen known 13,162 July 3, 1855 Improvement in Attachments for Lighting Rods
Lightning rod insulator holder for glass insulator (Salamander)		 DWYER, Robert D.
 Lightning Rod Insulator  
 1891
U 445,969 February 10, 1891 Electric Insulator
Round insulator mounted on top of crossarm with two screws and surrounded with a rubber tube. Conductor is supported on top and secured with a metal clip.		 BRANCH, James R.
 Insulator  
 1901
U Specimen known 682,709 September 17, 1901 Insulator
Knob to support underground conduit electric railways		 JENKINS, Wilton F.
 Knob  
 1907
U 861,275 July 30, 1907 Insulator for Electric Wires
Cleat - self-tying		 GALLAGHER, Constantine
 Cleat  

Total of 0.00 seconds