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Patent Assignment Assignor Details
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Assignor Name : BARFURTH, DIETER
Total Assignments: 23
Assignment: 1
Reel/Frame:004090/0157   Pages: 1
Recorded: 01/26/1983
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
BARFURTH, DIETER
Exec Dt:
01/18/1983
2
NESTLER, HEINZ
Exec Dt:
01/18/1983
Assignee
1
DYNAMIT NOBEL AKTIENGESELLSCHAFT A CORP. OF WEST GERMANY
POSTFACH 1209
TROISDORF,, GERMANY 5210
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4578487
NONE
06461072
Correspondence name and address
FELFE AND LYNCH
800 THIRD AVE.
NEW YORK, NY 10022
Assignment: 2
Reel/Frame:004321/0717   Pages: 1
Recorded: 10/09/1984
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
BARFURTH, DIETER
Exec Dt:
09/27/1984
2
NESTLER, HEINZ
Exec Dt:
09/27/1984
Assignee
1
DYNAMIT NOBEL AG, A GERMAN CORP.
5210 TROISDORF BEZ. KOLN
POSTFACH 1209 WEST, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4609746
NONE
06658489
Correspondence name and address
FELFE & LYNCH
805 THIRD AVE.
NEW YORK, NY 10022
Assignment: 3
Reel/Frame:004321/0720   Pages: 1
Recorded: 10/09/1984
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
BARFURTH, DIETER
Exec Dt:
09/27/1984
2
NESTLER, HEINZ
Exec Dt:
09/27/1984
Assignee
1
DYNAMIT NOBEL AG, A GERMAN CORP.
5210 TROISDORF BEZ. KOLN
POSTFACH 1209 WEST, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4621148
NONE
06658488
Correspondence name and address
FELFE & LYNCH
805 THIRD AVE.
NEW YORK, NY 10022
Assignment: 4
Reel/Frame:004369/0256   Pages: 1
Recorded: 10/09/1984
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
BARFURTH, DIETER
Exec Dt:
09/27/1984
2
NESTLER, HEINZ
Exec Dt:
09/27/1984
Assignee
1
DYNAMIT NOBEL AG, A GERMAN CORP.
5210 TROISDORF BEZ.
KOLN POSTFACH 1209, WEST, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4647680
NONE
06658477
Correspondence name and address
FELFE & LYNCH
805 THIRD AVENUE
NEW YORK, NY 10022
Assignment: 5
Reel/Frame:004363/0069   Pages: 1
Recorded: 01/29/1985
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
BARFURTH, DIETER
Exec Dt:
01/16/1985
2
NESTLER, HEINZ
Exec Dt:
01/16/1985
Assignee
1
DYNAMIT NOBEL AG
5210 TROISDORF BEZ. KOLN
POSTFACH 1209, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4609745
NONE
06696021
Correspondence name and address
FELFE & LYNCH
805 THIRD AVE.,
NEW YORK, NY 10022
Assignment: 6
Reel/Frame:004385/0217   Pages: 1
Recorded: 03/18/1985
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
NESTLER, HEINZ
Exec Dt:
03/04/1985
2
BARFURTH, DIETER
Exec Dt:
03/04/1985
Assignee
1
DYAMIT NOBEL AG
POSTFACH 1209
5210 TROISDORF BEZ. KOLN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4617408
NONE
06713302
Correspondence name and address
FELFE & LYNCH
805 THIRD AVE.
NEW YORK, NY 10022
Assignment: 7
Reel/Frame:004961/0123   Pages: 1
Recorded: 10/03/1988
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
BARFURTH, DIETER
Exec Dt:
09/29/1988
2
LINDZUS, CLAUS
Exec Dt:
09/29/1988
3
NESTLER, HEINZ
Exec Dt:
09/29/1988
Assignee
1
HULS TROISDORF AG, A CORP. OF GERMANY
POSTFACH 1165
D-5210 TROISDORF, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4931094
NONE
07252700
Correspondence name and address
FELFE AND LYNCH
805 THIRD AVENUE
NEW YORK, NY 10022
Assignment: 8
Reel/Frame:004972/0006   Pages: 1
Recorded: 11/08/1988
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
BARFURTH, DIETER
Exec Dt:
11/02/1988
2
NESTLER, HEINZ
Exec Dt:
11/02/1988
Assignee
1
HULLS TROISDORF AG
POSTFACH 1165
A GERMAN CORP.
D-5210 TROISDORF, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4924016
NONE
07268897
Correspondence name and address
FELFE & LYNCH
805 THIRD AVENUE
NEW YORK, NY 10022
Assignment: 9
Reel/Frame:004989/0337   Pages: 1
Recorded: 12/05/1988
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
BARFURTH, DIETER
Exec Dt:
11/08/1988
2
NESTLER, HEINZ
Exec Dt:
11/08/1988
Assignee
1
HULS TROISDORF AG, POSTFACH 1165, D-5210 TROISDORF, FED. REP. OF GERMANY, A GERMAN CORP.
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4909846
NONE
07264697
Correspondence name and address
FELFE & LYNCH
805 THIRD AVENUE
NEW YORK, NY 10022
Assignment: 10
Reel/Frame:005047/0914   Pages: 1
Recorded: 02/23/1989
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
BARFURTH, DIETER
Exec Dt:
02/17/1989
2
LINDZUS, CLAUS
Exec Dt:
02/17/1989
3
NESTLER, HEINZ
Exec Dt:
02/17/1989
Assignee
1
HULS TROISDORF AG
POSTFACH 1165
D-5210 TROISDORF, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5021596
NONE
07314816
Correspondence name and address
FELFE & LYNCH
805 THIRD AVENUE
NEW YORK, NY 10022
Assignment: 11
Reel/Frame:009937/0535   Pages: 3
Recorded: 04/28/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
STANDKE, BURKHARD
Exec Dt:
01/27/1999
2
MONKIEWICZ, JAROSLAW
Exec Dt:
01/27/1999
3
FRINGS, ALBERT-JOHANNES
Exec Dt:
01/27/1999
4
LAVEN, RALF
Exec Dt:
01/27/1999
5
EDELMANN, ROLAND
Exec Dt:
01/27/1999
6
JENKNER, PETER
Exec Dt:
01/27/1999
7
MACK, HELMUT
Exec Dt:
01/27/1999
8
BARFURTH, DIETER
Exec Dt:
01/27/1999
9
HORN, MICHAEL
Exec Dt:
01/27/1999
Assignee
1
HUELS AKTIENGESELLSCHAFT
PAUL-BAUMANN-STRASSE 1
MARL, D-45764, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6255513
NONE
09300448
Correspondence name and address
OBLON, SPIVAK, MCCLELLAND, MAIER &
NEUSTADT, P.C.
JOHN K. PIKE, PH.D., ATTORNEYS AT LAW
1755 JEFFERSON DAVIS HIGHWAY, 4TH. FLOOR
ARLINGTON, VIRGINIA 22202
Assignment: 12
Reel/Frame:009937/0548   Pages: 3
Recorded: 04/28/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
STANDKE, BURKHARD
Exec Dt:
01/27/1999
2
MONKIEWICZ, JAROSLAW
Exec Dt:
01/27/1999
3
FRINGS, ALBERT-JOHANNES
Exec Dt:
01/27/1999
4
LAVEN, RALF
Exec Dt:
01/27/1999
5
EDELMANN, ROLAND
Exec Dt:
01/27/1999
6
JENKNER, PETER
Exec Dt:
01/27/1999
7
MACK, HELMUT
Exec Dt:
01/27/1999
8
BARFURTH, DIETER
Exec Dt:
01/27/1999
9
HORN, MICHAEL
Exec Dt:
01/27/1999
Assignee
1
HUELS AKTIENGESELLSCHAFT
PAUL-BAUMANN-STRASSE 1
MARL, D-45764, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6239194
NONE
09300450
Correspondence name and address
OBLON, SPIVAK, MCCLELLAND, MAIER ET AL.
JOHN K. PIKE
ATTORNEYS AT LAW, FOURTH FLOOR
1755 JEFFERSON DAVIS HIGHWAY
ARLINGTON, VIRGINIA 22202
Assignment: 13
Reel/Frame:010355/0160   Pages: 4
Recorded: 10/27/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MACK, HELMUT
Exec Dt:
07/13/1999
2
BARFURTH, DIETER
Exec Dt:
07/13/1999
3
EDELMANN, ROLAND
Exec Dt:
07/13/1999
4
FRINGS, ALBERT-JOHANNES
Exec Dt:
07/13/1999
5
HORN, MICHAEL
Exec Dt:
07/13/1999
6
JENKNER, PETER
Exec Dt:
07/13/1999
7
LAVEN, RALF
Exec Dt:
07/13/1999
8
MONKIEWICZ, JAROSLAW
Exec Dt:
07/13/1999
9
STANDKE, BURKHARD
Exec Dt:
07/13/1999
Assignee
1
DEGUSSA-HUELS AKTIENGESELLSCHAFT
FRANKFURT, D-60287, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6395858
NONE
09427479
Correspondence name and address
OBLON, SPIVAK, MCCLELLAND ET AL.
JAMES J. KELLY
FOURTH FLOOR
1755 JEFFERSON DAVIS HIGHWAY
ARLINGTON, VIRGINIA 22202
Assignment: 14
Reel/Frame:010345/0248   Pages: 3
Recorded: 10/27/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BARFURTH, DIETER
Exec Dt:
08/31/1999
2
MACK, HELMUT
Exec Dt:
08/31/1999
3
GOETZMANN, KARL
Exec Dt:
09/28/1999
4
MANS, VINCENTE
Exec Dt:
09/27/1999
5
NAEGERL, HANS-DIETER
Exec Dt:
09/23/1999
6
SOMMER, KLAUS
Exec Dt:
09/21/1999
Assignees
1
DEGUSSA-HUELS AKTIENGESELLSCHAFT
PAUL-BAUMANN-STRASSE 1
MARL 45764, GERMANY
2
CHEMISCHE FABRIK BUDENHEIM RUDOLF A. OETKER
RHEINSTRASSE 27
BUDENHEIM 55257, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6444315
NONE
09347534
Correspondence name and address
OBLON, SPIVAK, MCCLELLAND, ETAL
GEORGE F. LESMES
ATTORNEYS AT LAW, FOURTH FLOOR
1755 JEFFERSON DAVIS HIGHWAY
ARLINGTON, VA 22202
Assignment: 15
Reel/Frame:011056/0399   Pages: 3
Recorded: 08/29/2000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MACK, HELMUT
Exec Dt:
07/20/2000
2
LAVEN, RALF
Exec Dt:
07/20/2000
3
JENKNER, PETER
Exec Dt:
07/20/2000
4
EDELMANN, ROLAND
Exec Dt:
07/20/2000
5
BARFURTH, DIETER
Exec Dt:
07/20/2000
6
FRINGS, ALBERT-JOHANNES
Exec Dt:
07/20/2000
7
STANDKE, BURKHARD
Exec Dt:
07/20/2000
8
MONKIEWICZ, JAROSLAW
Exec Dt:
07/20/2000
9
HORN, MICHAEL
Exec Dt:
07/20/2000
Assignee
1
DEGUSSA-HUELS AKTIENGESELLSCHAFT
D-60287 FRANKFURT, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6403228
NONE
09604273
Correspondence name and address
OBLON, SPIVAK, MCCLELLAND, MAIER ET AL.
RICHARD L. CHINN, PH.D.
FOURTH FLOOR
1755 JEFFERSON DAVIS HIGHWAY
ARLINGTON, VIRGINIA 22202
Assignment: 16
Reel/Frame:011104/0503   Pages: 3
Recorded: 09/12/2000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MACK, HELMUT
Exec Dt:
08/18/2000
2
JENKNER, PETER
Exec Dt:
08/18/2000
3
EDELMANN, ROLAND
Exec Dt:
08/18/2000
4
BARFURTH, DIETER
Exec Dt:
08/18/2000
5
FRINGS, ALBER-JOHANNES
Exec Dt:
08/18/2000
6
STANDKE, BURKHARD
Exec Dt:
08/18/2000
7
MONKIEWICZ, JAROSLAW
Exec Dt:
08/18/2000
8
HORN, MICHAEL
Exec Dt:
08/18/2000
9
SCHLOSSER, THOMAS
Exec Dt:
08/18/2000
Assignee
1
DEGUSSA-HUELS AKTIENGESELLSCHAFT
D-60287 FRANKFURT, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6500883
NONE
09660173
Correspondence name and address
OBLON, SPIVAK, MCCLELAND, MAIER ETAL
SAMUEL H. BEACH
FOURTH FLOOR
1755 JEFFERSON DAVIS HIGHWAY
ARLINGTON, VA 22202
Assignment: 17
Reel/Frame:012929/0247   Pages: 3
Recorded: 05/24/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MACK, HELMUT
Exec Dt:
05/14/2002
2
BARFURTH, DIETER
Exec Dt:
05/14/2002
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1, D-40474
DUESSELDORF, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6784272
US20020188068
10108502
Correspondence name and address
OBLON, SPIVAK, MCCLELLAND, ET AL.
KIRSTEN A. GRUENEBERG, PH.D.
1755 JEFFERSON DAVIS HIGHWAY
FOURTH FLOOR
ARLINGTON, VA 22202
Assignment: 18
Reel/Frame:013682/0974   Pages: 3
Recorded: 01/21/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GIESSLER, SABINE
Exec Dt:
12/18/2002
2
MACK, HELMUT
Exec Dt:
12/18/2002
3
BARFURTH, DIETER
Exec Dt:
12/18/2002
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
D-40474 DUESSELDORF, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6858746
US20030100784
10267819
Correspondence name and address
OBLON, SPIVAK, MCCLELLAND, MAIER ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 19
Reel/Frame:014042/0355   Pages: 3
Recorded: 05/07/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BARFURTH, DIETER
Exec Dt:
02/20/2003
2
MACK, HELMUT
Exec Dt:
02/20/2003
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
D-40474 DUESSELDORF, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6780955
US20030166817
10348959
Correspondence name and address
OBLON, SPIVAK, MCCLELLAND, MAIER & NEUST
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 20
Reel/Frame:014481/0293   Pages: 3
Recorded: 08/28/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BARFURTH, DIETER
Exec Dt:
04/14/2003
2
MACK, HELMUT
Exec Dt:
04/14/2003
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
D-40474 DUESSELDORF, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7125922
US20040054048
10649722
Correspondence name and address
OBLON, SPIVAK, MCCLELLAND, MAIER & NEUST
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 21
Reel/Frame:017451/0774   Pages: 3
Recorded: 01/12/2006
Attorney Dkt #:265280us0pct
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BARFURTH, DIETER
Exec Dt:
02/04/2005
2
MACK, HELMUT
Exec Dt:
02/04/2005
3
STANDKE, BURKHARD
Exec Dt:
02/04/2005
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
DUESSELDORF, GERMANY 40474
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7625975
US20070032609
10524689
Correspondence name and address
OBLON SPIVAK MCCLELLAND MAIER & NEUSTADT
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 22
Reel/Frame:018346/0139   Pages: 3
Recorded: 09/26/2006
Attorney Dkt #:279797US0PCT
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BARFURTH, DIETER
Exec Dt:
11/08/2005
2
MACK, HELMUT
Exec Dt:
11/08/2005
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
D-40474 DUESSELDORF, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7939616
US20070032622
10555984
Correspondence name and address
C. IRVIN MCCLELLAND
OBLON SPIVAK MCCLELLAND MAIER & NEUSTADT
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 23
Reel/Frame:020490/0975   Pages: 3
Recorded: 02/11/2008
Attorney Dkt #:283348US0PCT
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BARFURTH, DIETER
Exec Dt:
12/15/2005
2
MACK, HELMUT
Exec Dt:
12/15/2005
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
DUESSELDORF, GERMANY 40474
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7847018
US20080146730
10566371
Correspondence name and address
OBLON, SPIVAK, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314

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