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 = 'Porcelain Products, Inc.') ORDER BY date ASC, patent, type

Total of 8 patents found where: Assigned To is 'Porcelain Products, Inc.';

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
 1935
U 2,024,831 December 17, 1935 Insulator
Spool type wireholder and lag screw bracket		 MEYER, Edwin M.
 Wireholder Porcelain Products, Inc.
 1938
D Specimen known 108,489 February 15, 1938 Design for an Electric Insulator
Standard Porcelain No. 57		 DALTON, Rolland E.
 Knob Porcelain Products, Inc.
 1941
U 2,234,604 March 11, 1941 Molding Apparatuse
Automatic press for molding nail knobs		 PECK, Lee H.
 Press Porcelain Products, Inc.
 1942
U 2,269,409 January 6, 1942 Wire Holder
Wireholder with lag screw		 MCCHESNEY, JR., Samuel Waldrop
 Wireholder Porcelain Products, Inc.
U 2,278,330 March 31, 1942 Multipost Line Insulator
Two post insulators joined together with elongated metal bottom cap		 MEYER, Edwin M.
 Insulator Porcelain Products, Inc.
U Specimen known 2,286,488 June 16, 1942 Spool Insulator
Spool insulator with deep side groove		 JOHNSON, Lewis E.
 Spool Porcelain Products, Inc.
U 2,286,496 June 16, 1942 Wire Holder
Wireholder with lag screw		 MEYER, Edwin M.
 Wireholder Porcelain Products, Inc.
 1943
U 2,323,967 July 13, 1943 Thimble Equipped Insulator
Malleable metal thimble cemented in the pinhole with a flange to cover the cement		 BARNITZ, Richard W.
 Thimble Porcelain Products, Inc.

Total of 0.00 seconds