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 (assigned_to = 'Hermsdorf-Schomburg-Isolatoren G. M. B. H.') ORDER BY date ASC, patent, type

Total of 2 patents found where: Assigned To is 'Hermsdorf-Schomburg-Isolatoren G. M. B. H.';

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
 1929
U 1,729,532 September 24, 1929 Electrical Insulator
Cap and pin design for suspension insulator
ZIESCHE, Otto Paul
Suspension Hermsdorf-Schomburg-Isolatoren G. M. B. H.
 1932
U 1,877,630 September 13, 1932 High Tension Insulator
Multipart cementing technique using a resilient layer or shaped sleeve
SCHEID, Johann Friedrich
Multipart Hermsdorf-Schomburg-Isolatoren G. M. B. H.

Total of 0.02 seconds