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 (assigned_to = 'Peirce Specialty Co.') ORDER BY last_name ASC, first_name, date, patent, type

Total of 3 patents found where: Assigned To is 'Peirce Specialty Co.';

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
 PEIRCE, JR., Charles L.
U 856,488 June 11, 1907 Insulator
Pin (metal) using spring for threads		 PEIRCE, JR., Charles L.
 Pin Peirce Specialty Co.
U 856,801 June 11, 1907 Insulator
Pin (metal) using spring for threads		 PEIRCE, JR., Charles L.
 Pin Peirce Specialty Co.
U 883,823 April 7, 1908 Insulator Support
Pin with coiled spring for threads		 PEIRCE, JR., Charles L.
 Pin Peirce Specialty Co.

Total of 0.02 seconds