Donald J. Kerfeld

Person

Saint Paul, MN, US

People

Patents Grantslast 30 patents

Information Patent Grant
Replica disk for data storage
- Patent number 8,705,334
- Issue date Apr 22, 2014
- Legger Col. A.B. LLC
- Jathan D. Edwards
- G11 - INFORMATION STORAGE
Information Patent Grant
Reverse optical mastering for data storage disk replicas
- Patent number RE44633
- Issue date Dec 10, 2013
- Legger Col. A.B. LLC
- Jathan D. Edwards
- 369 - Dynamic information storage or retrieval
Information Patent Grant
Replica disk for data storage
- Patent number 8,593,931
- Issue date Nov 26, 2013
- Legger Col. A.B. LLC
- Jathan D. Edwards
- G11 - INFORMATION STORAGE
Information Patent Grant
Reverse optical mastering for data storage disk replicas
- Patent number 8,363,534
- Issue date Jan 29, 2013
- Legger Col. A.B. LLC
- Jathan D. Edwards
- G11 - INFORMATION STORAGE
Information Patent Grant
Reverse optical mastering for data storage disk replicas
- Patent number 7,952,986
- Issue date May 31, 2011
- Imation Corp.
- Jathan D. Edwards
- G11 - INFORMATION STORAGE
Information Patent Grant
Reverse optical mastering for data storage disk replicas
- Patent number 7,801,016
- Issue date Sep 21, 2010
- Imation Corp.
- Jathan D. Edwards
- G11 - INFORMATION STORAGE
Information Patent Grant
Reverse optical mastering for data storage disk stamper
- Patent number 7,600,992
- Issue date Oct 13, 2009
- Imation Corp.
- Jathan D. Edwards
- G11 - INFORMATION STORAGE
Information Patent Grant
Reverse optical mastering for data storage disk replicas
- Patent number 7,352,685
- Issue date Apr 1, 2008
- Imation Corp.
- Jathan D. Edwards
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk mold tooling for reduced edge wedge
- Patent number 7,114,947
- Issue date Oct 3, 2006
- Imation Corp.
- Chad R. Sandstrom
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Check disk for optical data storage disk manufacturing
- Patent number 6,977,052
- Issue date Dec 20, 2005
- Imation Corp.
- Ted L. Bahns
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Variable thickness stamper for creation of flat molded substrates
- Patent number 6,961,950
- Issue date Nov 1, 2005
- Imation Corp.
- Donald J. Kerfeld
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Two-sided replication of data storage media
- Patent number 6,821,460
- Issue date Nov 23, 2004
- Imation Corp.
- Donald J. Kerfeld
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Optical disk mold tooling for reduced edge wedge
- Patent number 6,752,611
- Issue date Jun 22, 2004
- Imation Corp.
- Chad R. Sandstrom
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Replicated regions on optical disks
- Patent number 6,638,692
- Issue date Oct 28, 2003
- Imation Corp.
- Anthony O. Banal
- G11 - INFORMATION STORAGE
Information Patent Grant
Multi-generation stampers
- Patent number 6,616,867
- Issue date Sep 9, 2003
- Imation Corp.
- Donald J. Kerfeld
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Process for making multiple data storage disk stampers from one master
- Patent number 6,365,329
- Issue date Apr 2, 2002
- Imation Corp.
- Donald J. Kerfeld
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Stamper assembly for manufacturing optical data storage disks
- Patent number 6,354,827
- Issue date Mar 12, 2002
- Imation Corp.
- Donald J. Kerfeld
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Process for making multiple data storage disk stampers from one master
- Patent number 6,190,838
- Issue date Feb 20, 2001
- Imation Corp.
- Donald J. Kerfeld
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Metallized information carrying discs
- Patent number 4,519,065
- Issue date May 21, 1985
- Minnesota Mining and Manufacturing Company
- Terry W. Lewis
- G11 - INFORMATION STORAGE
Information Patent Grant
Process for making information carrying discs
- Patent number 4,374,077
- Issue date Feb 15, 1983
- Minnesota Mining and Manufacturing Company
- Donald J. Kerfeld
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Metallized information carrying discs
- Patent number 4,363,844
- Issue date Dec 14, 1982
- Terry W. Lewis
- G11 - INFORMATION STORAGE
Information Patent Grant
Information carrying discs
- Patent number 4,304,806
- Issue date Dec 8, 1981
- Minnesota Mining and Manufacturing Company
- Roger J. Anderson
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Replica Disk for Data Storage
- Publication number 20140056120
- Publication date Feb 27, 2014
- LEGGER COL. A.B. LLC
- Jathan D. Edwards
- G11 - INFORMATION STORAGE
Information Patent Application
REPLICA DISK FOR DATA STORAGE
- Publication number 20130121128
- Publication date May 16, 2013
- LEGGER COL. A.B. LLC
- Jathan D. Edwards
- G11 - INFORMATION STORAGE
Information Patent Application
Reverse Optical Mastering for Data Storage Disk Replicas
- Publication number 20110223369
- Publication date Sep 15, 2011
- Imation Corp.
- Jathan D. Edwards
- G11 - INFORMATION STORAGE
Information Patent Application
Reverse Optical Mastering for Data Storage Disk Replicas
- Publication number 20100297382
- Publication date Nov 25, 2010
- Imation Corp.
- Jathan D. Edwards
- G11 - INFORMATION STORAGE
Information Patent Application
Reverse optical mastering for data storage disk replicas
- Publication number 20100067360
- Publication date Mar 18, 2010
- Jathan D. Edwards
- G11 - INFORMATION STORAGE
Information Patent Application
Cover layer structure for optical data storage media
- Publication number 20060198290
- Publication date Sep 7, 2006
- Barry E. Brovold
- G11 - INFORMATION STORAGE
Information Patent Application
Reverse Optical mastering for data storage disk stamper
- Publication number 20040231531
- Publication date Nov 25, 2004
- Jathan D. Edwards
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disk mold tooling for reduced edge wedge
- Publication number 20040218510
- Publication date Nov 4, 2004
- Chad R. Sandstrom
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Reverse optical mastering for data storage disk replicas
- Publication number 20040170117
- Publication date Sep 2, 2004
- Jathan D. Edwards
- G11 - INFORMATION STORAGE
Information Patent Application
Variable thickness stamper for creation of flat molded substrates
- Publication number 20030043731
- Publication date Mar 6, 2003
- Imation Corp.
- Donald J. Kerfeld
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Two-sided replication of data storage media
- Publication number 20030011087
- Publication date Jan 16, 2003
- Imation Corp.
- Donald J. Kerfeld
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Multi-generation stampers
- Publication number 20020105103
- Publication date Aug 8, 2002
- Imation Corp.
- Donald J. Kerfeld
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Data storage media
- Publication number 20020068198
- Publication date Jun 6, 2002
- Donald J. Kerfeld
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disk mold tooling for reduced edge wedge
- Publication number 20020058084
- Publication date May 16, 2002
- Chad R. Sandstrom
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Process for making multiple data storage disk stampers from one master
- Publication number 20010000745
- Publication date May 3, 2001
- Donald J. Kerfeld
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Donald J. Kerfeld

Person

Patents Grantslast 30 patents

Replica disk for data storage

Reverse optical mastering for data storage disk replicas

Replica disk for data storage

Reverse optical mastering for data storage disk replicas

Reverse optical mastering for data storage disk replicas

Reverse optical mastering for data storage disk replicas

Reverse optical mastering for data storage disk stamper

Reverse optical mastering for data storage disk replicas

Optical disk mold tooling for reduced edge wedge

Check disk for optical data storage disk manufacturing

Variable thickness stamper for creation of flat molded substrates

Two-sided replication of data storage media

Optical disk mold tooling for reduced edge wedge

Replicated regions on optical disks

Multi-generation stampers

Process for making multiple data storage disk stampers from one master

Stamper assembly for manufacturing optical data storage disks

Process for making multiple data storage disk stampers from one master

Metallized information carrying discs

Process for making information carrying discs

Metallized information carrying discs

Information carrying discs

Patents Applicationslast 30 patents

Replica Disk for Data Storage

REPLICA DISK FOR DATA STORAGE

Reverse Optical Mastering for Data Storage Disk Replicas

Reverse Optical Mastering for Data Storage Disk Replicas

Reverse optical mastering for data storage disk replicas

Cover layer structure for optical data storage media

Reverse Optical mastering for data storage disk stamper

Optical disk mold tooling for reduced edge wedge

Reverse optical mastering for data storage disk replicas

Variable thickness stamper for creation of flat molded substrates

Two-sided replication of data storage media

Multi-generation stampers

Data storage media

Optical disk mold tooling for reduced edge wedge

Process for making multiple data storage disk stampers from one master