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 = 'STEVENS') AND (first_name = 'Frank J.') ORDER BY date ASC, patent, type

Total of 3 patents found where: Last Name is 'STEVENS'; First Name is 'Frank J.';

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
 1922
U 1,412,759 April 11, 1922 Cementless Strain Insulator
Suspension disks connected by circular clamps		 STEVENS, Frank J.
 Suspension Locke Insulator Corp.
 1929
U 1,733,729 October 29, 1929 Method of Casting Link-Type Insulators
Manufacturing method to cast Hewlett type suspension disks		 GOUVERNEUR, Minor F. H.
STEVENS, Frank J.
 Manufacturing Locke Insulator Corp.
 1933
U 1,931,626 October 24, 1933 Insulator
Threads molded from cement in finished insulator		 STEVENS, Frank J.
 Thread Locke Insulator Corp.

Total of 0.00 seconds