DK

Donald J. Kerfeld

IM Imation: 14 patents #11 of 622Top 2%
3M: 3 patents #4,214 of 11,543Top 40%
Overall (All Time): #197,259 of 4,157,543Top 5%
22
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
8705334 Replica disk for data storage Jathan D. Edwards 2014-04-22
RE44633 Reverse optical mastering for data storage disk replicas Jathan D. Edwards 2013-12-10
8593931 Replica disk for data storage Jathan D. Edwards 2013-11-26
8363534 Reverse optical mastering for data storage disk replicas Jathan D. Edwards 2013-01-29
7952986 Reverse optical mastering for data storage disk replicas Jathan D. Edwards 2011-05-31
7801016 Reverse optical mastering for data storage disk replicas Jathan D. Edwards 2010-09-21
7600992 Reverse optical mastering for data storage disk stamper Jathan D. Edwards 2009-10-13
7352685 Reverse optical mastering for data storage disk replicas Jathan D. Edwards 2008-04-01
7114947 Optical disk mold tooling for reduced edge wedge Chad R. Sandstrom, Douglas R. Plourde, Dean E. Sitz, John R. Johnson 2006-10-03
6977052 Check disk for optical data storage disk manufacturing Ted L. Bahns, Barry Brovold 2005-12-20
6961950 Variable thickness stamper for creation of flat molded substrates Douglas J. Chaput, Jathan D. Edwards, Chad R. Sandstrom 2005-11-01
6821460 Two-sided replication of data storage media Barry Brovold 2004-11-23
6752611 Optical disk mold tooling for reduced edge wedge Chad R. Sandstrom, Douglas R. Plourde, Dean E. Sitz, John R. Johnson 2004-06-22
6638692 Replicated regions on optical disks Anthony O. Banal, Ted L. Bahns, Kristi L. Chavez, Chad R. Sandstrom 2003-10-28
6616867 Multi-generation stampers 2003-09-09
6365329 Process for making multiple data storage disk stampers from one master 2002-04-02
6354827 Stamper assembly for manufacturing optical data storage disks 2002-03-12
6190838 Process for making multiple data storage disk stampers from one master 2001-02-20
4519065 Metallized information carrying discs Terry W. Lewis, Roger Jeffrey Anderson 1985-05-21
4374077 Process for making information carrying discs 1983-02-15
4363844 Metallized information carrying discs Terry W. Lewis, Roger Jeffrey Anderson 1982-12-14
4304806 Information carrying discs Roger Jeffrey Anderson, Larry Lien 1981-12-08