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 (last_name = 'O\'BRIEN') AND (first_name = 'John') ORDER BY date ASC, patent, type

Total of 2 patents found where: Last Name is 'O\'BRIEN'; First Name is 'John';

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
 1885
U Specimen known 316,812 April 28, 1885 Telegraph Insulator
CD 119, self-tying via projections (347,635 more appropriate)
O'BRIEN, John
Insulator William Brookfield
 1886
U Specimen known 347,635 August 17, 1886 Telegraph Insulator
CD 119, self-tying with fingers (should use instead of 316,812)
O'BRIEN, John
Insulator William Brookfield

Total of 0.00 seconds