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 = 'BROOKFIELD') AND (first_name = 'James M.') ORDER BY date ASC, patent, type

Total of 8 patents found where: Last Name is 'BROOKFIELD'; First Name is 'James M.';

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
 1853
U 9,789 June 14, 1853 Manufacturing Glass
Glass furnace for burning coal		 BROOKFIELD, James M.
WHITE, Ephraim V.
 Furnace  
 1870
U Specimen known 103,555 May 31, 1870 Improved Mode of Forming Glass Insulators
Press for making insulators using 2-piece mold & one forming operation (see reissue 9,392 on 9-28-1880)		 BROOKFIELD, James M.
 Press  
 1875
U 170,339 November 23, 1875 Improvement in Processes of Annealing Glass
Process of annealing glass		 BROOKFIELD, James M.
 Glass  
 1877
D Specimen known 9,858 March 20, 1877 Design for Telegraph Insulator
Telegraph insulator		 BROOKFIELD, James M.
 Pin-type  
D 9,956 May 8, 1877 Design for Telegraph Insulators
Telegraph insulator		 BROOKFIELD, James M.
 Pin-type  
 1878
U 200,973 March 5, 1878 Improvement in Glass Furnaces
Glass furnace		 BROOKFIELD, James M.
 Furnace  
 1879
D Specimen known 10,981 January 14, 1879 Design for Telegraph Insulator
CD 102 ""pony"" telegraph insulator		 BROOKFIELD, James M.
 Pin-type  
 1880
R Specimen known 9,392 September 28, 1880 Mode of Forming Insulators
Press for forming insulator and threaded pinhole (reissue of 103,555)		 BROOKFIELD, James M.
 Press  

Total of 0.01 seconds