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 = 'H. Schomburg & Shone') ORDER BY date ASC, patent, type

Total of 1 patents found where: Assigned To is 'H. Schomburg & Shone';

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
 1924
U 1,484,569 February 19, 1924 Ceramic Body
Method of making a suspension disk by inserting a fired porcelain part inside the bottom of an unfired disk, then firing the disk, which shrinks around the insert securing a cemented pin inside
SCHEID, Johannes Friedrich
Suspension H. Schomburg & Shone

Total of 0.01 seconds