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 WHERE (category = 'Lightning Rod System') ORDER BY date ASC, patent, type

Total of 1 patents found where: Category is 'Lightning Rod System';

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
 1909
U 926,521 June 29, 1909 Method of Protecting Buildings from Lightning
Method of improving lightning protection by keeping the roof cool with air or water		 TOTTEN, Robert C.
 Lightning Rod System  

Total of 0.00 seconds