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:
Year between: and
Patentee starting with:
Assigned To starting with:
Description containing:
Class:    Subclass:
Click Search when complete:
SELECT DISTINCT patent.*, YEAR(date) as year FROM patent WHERE (assigned_to = 'Johan M. Anderson') ORDER BY description DESC, date, patent, type

Total of 1 patents found where: Assigned To is 'Johan M. Anderson';

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
U 595,089 December 7, 1897 Third Rail Insulator
Third rail insulator with metal protective covering.
Third Rail 1/2 to Johan M. Anderson

Total of 0.01 seconds