skip navigationU S P T O SealUnited States Patent and Trademark Office AOTW logo
Home|Site Index|Search|Guides|Contacts|eBusiness|eBiz alerts|News|Help
Assignments on the Web > Patent Query
Patent Assignment Assignor Details
NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Assignor Name : SIFFERT, WINFRIED
Total Assignments: 12
Assignment: 1
Reel/Frame:013870/0283   Pages: 2
Recorded: 11/29/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
SIFFERT, WINFRIED
Exec Dt:
08/12/2002
Assignee
1
SNIP BIOTECH GMBH & CO. KG
KRUPPSTRASSE 82-100
ESSEN, GERMANY 45145
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20030129616
10203009
Correspondence name and address
NIXON PEABODY LLP
DAVID S. SAFRAN
8180 GREENSBORO DRIVE, SUITE 800
MCLEAN, VA 22102
Assignment: 2
Reel/Frame:013637/0431   Pages: 2
Recorded: 01/07/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SIFFERT, WINFRIED
Exec Dt:
12/23/2002
2
HAUNER, HANS
Exec Dt:
12/23/2002
Assignee
1
SNIP BIOTECH GMBH & CO., KG
KRUPPSTR. 82-100
ESSEN, GERMANY D-45145
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20030082610
10244592
Correspondence name and address
NIXON PEABODY LLP
DAVID S. SAFRAN
8180 GREENSBORO DR.
STE. 800
MCLEAN, VA 22102
Assignment: 3
Reel/Frame:017668/0483   Pages: 4
Recorded: 02/27/2006
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
FREY, ULRICH
Exec Dt:
09/22/2005
2
SIFFERT, WINFRIED
Exec Dt:
09/22/2005
Assignee
1
UNIVERSITAT DUISBURG-ESSEN
UNIVERSITATSSTR, 2
ESSEN, GERMANY 45145
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20060147936
10545998
Correspondence name and address
CRAIG J. ARNOLD
AMSTER, ROTHSTEIN & EBENSTEIN LLP
90 PARK AVENUE
NEW YORK, NY 10016
Assignment: 4
Reel/Frame:019575/0591   Pages: 4
Recorded: 07/11/2007
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
FREY, ULRICH
Exec Dt:
06/18/2007
2
SIFFERT, WINFRIED
Exec Dt:
06/14/2007
Assignee
1
UNIVERSITAT DUISBURG-ESSEN
UNIVERSITATSSTRASSE 2
ESSEN, GERMANY 45145
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20080020385
11597233
Correspondence name and address
ALAN D. MILLER
AMSTER, ROTHSTEIN & EBENSTEIN LLP
90 PARK AVENUE
NEW YORK, NEW YORK 10016
Assignment: 5
Reel/Frame:020519/0956   Pages: 4
Recorded: 02/13/2008
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
RIEMANN, KATRIN
Exec Dt:
01/09/2008
2
SIFFERT, WINFRIED
Exec Dt:
01/09/2008
Assignee
1
EUROFINS MEDIGENOMIX GMBH
FRAUNHOFERSTR. 22
MARTINSRIED, GERMANY 82152
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20080138821
11983449
Correspondence name and address
ALAN D. MILLER
AMSTER, ROTHSTEIN & EBENSTEIN LLP
90 PARK AVENUE
NEW YORK, NEW YORK 10016
Assignment: 6
Reel/Frame:022266/0724   Pages: 2
Recorded: 02/18/2009
Attorney Dkt #:741135-12 (DSS)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
SIFFERT, WINFRIED
Exec Dt:
02/06/2009
Assignee
1
EUROFINS MEDIGENOMIX GMBH
FRAUNHOFERSTRASSE 22
PLANEGG/MARTINSRIED, GERMANY D-82152
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6924100
US20020086297
09803653
Correspondence name and address
DAVID S. SAFRAN
PO BOX 10064
MCLEAN, VA 22102
Assignment: 7
Reel/Frame:022266/0726   Pages: 2
Recorded: 02/18/2009
Attorney Dkt #:741135-2 (DSS)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
SIFFERT, WINFRIED
Exec Dt:
02/06/2009
Assignee
1
EUROFINS MEDIGENOMIX GMBH
FRAUNHOFERSTRASSE 22
PLANEGG/MARTINSRIED, GERMANY D-82152
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6242181
NONE
09180783
Correspondence name and address
DAVID S. SAFRAN
PO BOX 10064
MCLEAN, VA 22102
Assignment: 8
Reel/Frame:023402/0161   Pages: 5
Recorded: 10/21/2009
Attorney Dkt #:22048-48
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ADAMZIK, MICHAEL
Exec Dt:
09/09/2009
2
FREY, ULRICH
Exec Dt:
09/09/2009
3
SIFFERT, WINFRIED
Exec Dt:
08/28/2009
Assignee
1
UNIVERSITAT DUISBURG-ESSEN
UNIVERSITATSSTRASSE 2
ESSEN, GERMANY 45145
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20100136532
12308613
Correspondence name and address
AMSTER, ROTHSTEIN & EBENSTEIN LLP
90 PARK AVENUE
NEW YORK, NY 10016
Assignment: 9
Reel/Frame:023863/0639   Pages: 8
Recorded: 01/28/2010
Attorney Dkt #:22048-52
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
RIEMANN, KATHRIN
Exec Dt:
01/18/2010
2
SIFFERT, WINFRIED
Exec Dt:
01/16/2010
Assignee
1
UNIVERSITAT DUISBURG-ESSEN
UNIVERSITATSSTRASSE 2
ESSEN, GERMANY 45145
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20100129797
12312474
Correspondence name and address
AMSTER, ROTHSTEIN & EBENSTEIN LLP
90 PARK AVENUE
NEW YORK, NY 10016
Assignment: 10
Reel/Frame:030160/0613   Pages: 6
Recorded: 04/05/2013
Attorney Dkt #:0051-0082-US2
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
RIEMANN, KATHRIN
Exec Dt:
01/18/2010
2
SIFFERT, WINFRIED
Exec Dt:
01/16/2010
Assignee
1
UNIVERSITAT DUISBURG-ESSEN
UNIVERSITATSSTRASSE 2
ESSEN, GERMANY 45145
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9074259
US20130189676
13666606
Correspondence name and address
FANELLI HAAG & KILGER PLLC
1909 K STREET, NW
SUITE 1120
WASHINGTON, DC 20006
Assignment: 11
Reel/Frame:035815/0587   Pages: 5
Recorded: 06/10/2015
Attorney Dkt #:0051-0082US3
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
RIEMANN, KATHRIN
Exec Dt:
01/18/2010
2
SIFFERT, WINFRIED
Exec Dt:
01/16/2010
Assignee
1
UNIVERSITAET DUISBURG-ESSEN
UNIVERSITAETSSTRASSE 2
ESSEN, GERMANY 45145
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20150337389
14718755
Correspondence name and address
FANELLI HAAG PLLC
1300 I STREET, N.W., SUITE 850 WEST
WASHINGTON, DC 20005
Assignment: 12
Reel/Frame:027901/0943   Pages: 4
Recorded: 03/21/2012
Attorney Dkt #:0051-0083-US1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SIFFERT, WINFRIED
Exec Dt:
09/28/2011
2
RIEMANN, KATHRIN
Exec Dt:
05/12/2011
Assignee
1
UNIVERSITAET DUISBURG-ESSEN
UNIVERSITAETSSTRASSE 2
ESSEN, GERMANY 45145
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9255297
US20120171671
13254725
Correspondence name and address
THOMAS A. HAAG
1909 K STREET, NW
SUITE 1120
WASHINGTON, DC 20006

Search Results as of: 05/26/2024 11:08 AM
If you have any comments or questions concerning the data displayed, contact PRD / Assignments at 571-272-3350. v.2.6
Web interface last modified: August 25, 2017 v.2.6
| .HOME | INDEX| SEARCH | eBUSINESS | CONTACT US | PRIVACY STATEMENT