FH

Frederick R. Hatch

FW Federal-Mogul Worldwide: 15 patents #17 of 317Top 6%
MS Mather Seal: 3 patents #1 of 11Top 10%
📍 Ann Arbor, MI: #416 of 6,071 inventorsTop 7%
🗺 Michigan: #4,032 of 86,293 inventorsTop 5%
Overall (All Time): #223,804 of 4,157,543Top 6%
20
Patents All Time

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #TitleCo-InventorsDate
9394998 Radial shaft seal assembly with snap in auxiliary member 2016-07-19
8573602 Radial shaft seal with dust exclusion and hydrodynamic sealing feature Andrew Lee Payne, Brent R. Sedlar, David M. Toth 2013-11-05
8505926 Low torque shaft seal with improved seal element bond joint David M. Toth, Brent R. Sedlar 2013-08-13
8480092 Radial seal and method of making 2013-07-09
8459654 Hydrodynamic seal with increased flexibility sealing element David M. Toth 2013-06-11
8235391 Radial shaft seal assembly with lubrication retention and debris exclusion feature and method of construction thereof David M. Toth 2012-08-07
8029714 Radial seal and method of making 2011-10-04
7959840 Method of constructing a low torque shaft seal 2011-06-14
7832100 Seal assembly and method of manufacturing the same David M. Toth 2010-11-16
7419165 Seal assembly and method of manufacturing the same David M. Toth 2008-09-02
7055828 Shaft seal Matthew J. Cibor, David M. Toth, Ronald J. Krimmer 2006-06-06
6988733 Bonded PTFE radial shaft seal 2006-01-24
6620361 Method of manufacturing a composite seal Scott Longtin, Stephen J. Carr, Jon A. Chandler, Gary B. Drake, Ronald Noteboom +1 more 2003-09-16
6367810 Self-centering shaft seal system 2002-04-09
5326111 Separately bonded elastomeric sleeve for seal casing 1994-07-05
5052696 Compact compressor seal 1991-10-01
4943068 Unitized exclusion seal William Myles Riley, Thomas M Banks 1990-07-24
4739998 Bidirectional seal with elliptical sealing barriers Bradley L. Steusloff 1988-04-26
4664392 Seal assembly for a vehicle air conditioning compressor 1987-05-12
4583749 Seal assembly for a vehicle air conditioning compressor 1986-04-22