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 = 'OLSEN') AND (first_name = 'Sigward') ORDER BY category ASC, date, patent, type

Total of 3 patents found where: Last Name is 'OLSEN'; First Name is 'Sigward';

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
 Press
U 1,049,594 January 7, 1913 Press for Molding Insulators or Similar Articles
Press for making glass insulators
OLSEN, Sigward
Press Brookfield Glass Co.
U 1,137,000 April 27, 1915 Fluid Molding Press
Press for making glass insulators
BROOKFIELD, Henry M.
OLSEN, Sigward
Press Brookfield Glass Co.
U 1,144,527 June 29, 1915 Mold
Press for making glass insulators
BROOKFIELD, Henry M.
OLSEN, Sigward
Press Brookfield Glass Co.

Total of 0.01 seconds