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:
Year between: and
Patentee starting with:
Assigned To starting with:
Description containing:
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 = 'Portland, ME') ORDER BY date ASC, patent, type

Total of 2 patents found where: Residence is 'Portland, ME';

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 1,799,580 April 7, 1931 Insulator
Suspension insulator composed of wood fibers impregnated with tar
BURKE, Edmund
Suspension Brown Co.
U 1,880,766 October 4, 1932 Support for Insulators
Steel pin with waterproof fiber threads and cone cover
BURKE, Edmund
Pin Brown Company

Total of 0.02 seconds