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Patent Assignment Assignor Details
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Assignor Name : PIRKL, GEORG
Total Assignments: 18
Assignment: 1
Reel/Frame:007692/0178   Pages: 2
Recorded: 09/29/1995
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LINSTEDT, WERNER
Exec Dt:
09/25/1995
2
PIRKL, GEORG
Exec Dt:
09/25/1995
Assignee
1
SIEMENS AKTIENGESELLSCHAFT
WITTELSBACHERPLATZ 2
80333 MUNICH, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5581183
NONE
08536771
Correspondence name and address
STEVEN H. NOLL
HILL, STEADMAN & SIMPSON P.C.
85TH FLOOR SEARS TOWER
233 S. WACKER DRIVE
CHICAGO, IL 60606
Assignment: 2
Reel/Frame:010640/0141   Pages: 2
Recorded: 03/25/2000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BAUMGARTL, RUDI
Exec Dt:
02/18/2000
2
KRIEG, ROBERT
Exec Dt:
02/09/2000
3
PIRKL, GEORG
Exec Dt:
02/09/2000
4
VESTER, MARKUS
Exec Dt:
02/18/2000
Assignee
1
SIEMENS AKTIENGESELLSCHAFT
WITTELSBACHERPLATZ 2
8000 MUENCHEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6339717
NONE
09513181
Correspondence name and address
HILL & SIMPSON, P.C.
STEVEN H. NOLL
233 S. WACKER DRIVE
85TH FLOOR, WACKER DRIVE
CHICAGO, IL 60606
Assignment: 3
Reel/Frame:010657/0599   Pages: 2
Recorded: 03/16/2000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KROECKEL, HORST
Exec Dt:
03/16/2000
2
LINDSTEDT, WERNER
Exec Dt:
03/16/2000
3
PIRKL, GEORG
Exec Dt:
03/16/2000
Assignee
1
SIEMENS AKTIENGESELLSCHAFT
WITTELABACHERPLATZ 2
80333 MUENCHEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6433546
NONE
09526410
Correspondence name and address
HILL & SIMPSON, P.C.
JAMES D. HOBART
85TH FLOOR SEARS TOWER
233 S. WACKER DRIVE
CHICAGO, IL 60606
Assignment: 4
Reel/Frame:019570/0699   Pages: 4
Recorded: 07/18/2007
Attorney Dkt #:P070090 (26965-3828)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BAUMGARTL, RUDI
Exec Dt:
06/11/2007
2
BUETTNER, MATTHIAS
Exec Dt:
05/07/2007
3
PIRKL, GEORG
Exec Dt:
06/11/2007
4
POTTHAST, ANDREAS
Exec Dt:
05/06/2007
Assignee
1
SIEMENS AKTIENGESELLSCHAFT
WITTELSBACHERPLATZ 2
MUENCHEN, GERMANY 80333
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7940046
US20070258479
11743223
Correspondence name and address
STEVEN H. NOLL
SCHIFF HARDIN LLP
6600 SEARS TOWER
CHICAGO, IL 60606
Assignment: 5
Reel/Frame:020465/0501   Pages: 2
Recorded: 02/05/2008
Attorney Dkt #:P070287 (26965-3928)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BAUMGARTL, RUDI
Exec Dt:
11/20/2007
2
DEMHARTER, NIKOLAUS
Exec Dt:
11/21/2007
3
PIRKL, GEORG
Exec Dt:
11/20/2007
Assignee
1
SIEMENS AKTIENGESELLSCHAFT
WITTELSBACHERPLATZ 2
MUENCHEN, GERMANY 80333
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7477057
US20080136417
11936173
Correspondence name and address
STEVEN H. NOLL
SCHIFF HARDIN LLP
6600 SEARS TOWER
CHICAGO, IL 60606-6473
Assignment: 6
Reel/Frame:020648/0348   Pages: 3
Recorded: 03/13/2008
Attorney Dkt #:P07,0350 (26965-3960)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DEMHARTER, NIKOLAUS
Exec Dt:
01/07/2008
2
HOECHT, PHILIPP
Exec Dt:
12/18/2007
3
PIRKL, GEORG
Exec Dt:
12/19/2007
4
SCHNELL, WILFRIED
Exec Dt:
12/18/2007
Assignee
1
SIEMENS AKTIENGESELLSCHAFT
WITTELSBACHERPLATZ 2
MUENCHEN, GERMANY 80333
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7904762
US20080155361
11962604
Correspondence name and address
STEVEN H. NOLL
SCHIFF HARDIN LLP
6600 SEARS TOWER
CHICAGO, IL 60606-6473
Assignment: 7
Reel/Frame:020406/0747   Pages: 3
Recorded: 01/15/2008
Attorney Dkt #:32860-001385/us
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LADEBECK, RALF
Exec Dt:
01/08/2008
2
PIRKL, GEORG
Exec Dt:
01/08/2008
Assignee
1
SIEMENS AKTIENGESELLSCHAFT
WITTELSBACHERPLATZ 2
MUNICH, GERMANY D-80333
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7595640
US20080169812
12007739
Correspondence name and address
HARNESS, DICKEY & PIERCE, P.L.C.
P.O. BOX 8910
RESTON, VIRGINIA 20195
Assignment: 8
Reel/Frame:020945/0190   Pages: 6
Recorded: 05/14/2008
Attorney Dkt #:P06,0308 (26965-3706)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
PIRKL, GEORG
Exec Dt:
03/20/2008
2
STOECKEL, BERND
Exec Dt:
04/18/2008
Assignee
1
SIEMENS AKTIENGESELLSCHAFT
WITTELSBACHERPLATZ 2
MUENCHEN, GERMANY 80333
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7439742
US20080122443
11605780
Correspondence name and address
STEVEN H. NOLL
SCHIFF HARDIN LLP
6600 SEARS TOWER
CHICAGO, IL 60606-6473
Assignment: 9
Reel/Frame:022227/0632   Pages: 2
Recorded: 02/09/2009
Attorney Dkt #:P08,0373 (26965-4177)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DEMHARTER, NIKOLAUS
Exec Dt:
12/03/2008
2
PIRKL, GEORG
Exec Dt:
12/03/2008
3
VESTER, MARKUS
Exec Dt:
12/03/2008
Assignee
1
SIEMENS AKTIENGESELLSCHAFT
WITTELSBACHERPLATZ 2
MUNICH, GERMANY 80333
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8269493
US20090137898
12275695
Correspondence name and address
SCHIFF HARDIN, LLP PATENT DEPARTMENT
6600 SEARS TOWER
CHICAGO, IL 60606-6473
Assignment: 10
Reel/Frame:022839/0660   Pages: 2
Recorded: 06/17/2009
Attorney Dkt #:P09,0056 (26965-4247)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BAUMGARTL, RUDI
Exec Dt:
04/30/2009
2
DEMHARTER, NIKOLAUS
Exec Dt:
04/30/2009
3
PIRKL, GEORG
Exec Dt:
04/30/2009
4
WERNER, ROLAND
Exec Dt:
04/30/2009
Assignee
1
SIEMENS AKTIENGESELLSCHAFT
WITTELSBACHERPLATZ 2
MUNICH, GERMANY 80333
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7977945
US20090251141
12420125
Correspondence name and address
SCHIFF HARDIN, LLP PATENT DEPARTMENT
6600 SEARS TOWER
CHICAGO, IL 60606-6473
Assignment: 11
Reel/Frame:024787/0017   Pages: 2
Recorded: 08/04/2010
Attorney Dkt #:P10,0187 (26965-4536)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BAUMGARTL, RUDI
Exec Dt:
08/03/2010
2
DEMHARTER, NIKOLAUS
Exec Dt:
07/29/2010
3
PIRKL, GEORG
Exec Dt:
07/29/2010
4
WERNER, ROLAND
Exec Dt:
07/29/2010
Assignee
1
SIEMENS AKTIENGESELLSCHAFT
WITTELSBACHERPLATZ 2
MUENCHEN, GERMANY 80333
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8402300
US20110040997
12849952
Correspondence name and address
SCHIFF HARDIN LLP
233 S. WACKER DRIVE - SUITE 6600
CHICAGO, IL 60606
Assignment: 12
Reel/Frame:030577/0846   Pages: 3
Recorded: 06/10/2013
Attorney Dkt #:11371-12105
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
PIRKL, GEORG
Exec Dt:
12/18/2012
Assignee
1
SIEMENS AKTIENGESELLSCHAFT
WITTELSBACHERPLATZ 2
MUENCHEN, GERMANY 80333
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9411029
US20130119982
13675950
Correspondence name and address
LEMPIA SUMMERFIELD KATZ LLC
ONE NORTH LASALLE STREET
SUITE 2900
CHICAGO, IL 60602
Assignment: 13
Reel/Frame:032224/0659   Pages: 5
Recorded: 02/15/2014
Attorney Dkt #:11371-12152A
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DIETZ, PETER
Exec Dt:
03/18/2013
2
PIRKL, GEORG
Exec Dt:
03/18/2013
3
SPECKNER, THORSTEN
Exec Dt:
03/18/2013
Assignee
1
SIEMENS AKTIENGESELLSCHAFT
WITTELSBACHERPLATZ 2
MÜNCHEN, GERMANY 80333
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9194926
US20130214784
13769315
Correspondence name and address
LEMPIA SUMMERFIELD KATZ LLC
ONE NORTH LASALLE STREET
SUITE 2900
CHICAGO, IL 60602
Assignment: 14
Reel/Frame:036879/0202   Pages: 3
Recorded: 10/26/2015
Attorney Dkt #:P15,0119 (26965-5244)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
PIRKL, GEORG
Exec Dt:
09/30/2015
Assignee
1
SIEMENS AKTIENGESELLSCHAFT
WITTELSBACHERPLATZ 2
MUNICH, GERMANY 80333
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10126387
US20150362572
14736757
Correspondence name and address
SCHIFF HARDIN, LLP
233 S. WACKER DRIVE-SUITE 6600
SCHIFF HARDIN LLP PATENT DEPARTMENT
CHICAGO, IL 60606-6473
Assignment: 15
Reel/Frame:037116/0052   Pages: 3
Recorded: 11/23/2015
Attorney Dkt #:P15,0138 (26965-5262)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
PIRKL, GEORG
Exec Dt:
09/30/2015
Assignee
1
SIEMENS AKTIENGESELLSCHAFT
WITTELSBACHERPLATZ 2
MUNICH, GERMANY 80333
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20160036525
14812165
Correspondence name and address
SCHIFF HARDIN, LLP
233 S. WACKER DRIVE-SUITE 6600
SCHIFF HARDIN LLP PATENT DEPARTMENT
CHICAGO, IL 60606-6473
Assignment: 16
Reel/Frame:042854/0268   Pages: 3
Recorded: 06/28/2017
Attorney Dkt #:11371-15184A
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BIBER, STEPHAN
Exec Dt:
02/03/2016
2
PIRKL, GEORG
Exec Dt:
02/08/2016
Assignee
1
SIEMENS AKTIENGESELLSCHAFT
WITTELSBACHERPLATZ 2
MÜNCHEN, GERMANY 80333
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10132885
US20160195595
14975779
Correspondence name and address
LEMPIA SUMMERFIELD KATZ LLC
20 SOUTH CLARK ST
SUITE 600
CHICAGO, IL 60603
Assignment: 17
Reel/Frame:038424/0435   Pages: 5
Recorded: 04/29/2016
Attorney Dkt #:11371-15223A
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BOLLENBECK, JAN
Exec Dt:
03/29/2016
2
PIRKL, GEORG
Exec Dt:
03/21/2016
3
REHNER, ROBERT
Exec Dt:
03/21/2016
4
SPEIER, PETER
Exec Dt:
03/18/2016
5
VESTER, MARKUS
Exec Dt:
03/21/2016
Assignee
1
SIEMENS AKTIENGESELLSCHAFT
WITTELSBACHERPLATZ 2
MÜNCHEN, GERMANY 80333
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10222443
US20160245888
15052607
Correspondence name and address
LEMPIA SUMMERFIELD KATZ LLC
20 SOUTH CLARK ST
SUITE 600
CHICAGO, IL 60603
Assignment: 18
Reel/Frame:051625/0121   Pages: 5
Recorded: 01/27/2020
Attorney Dkt #:2012P30002US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WERSHOFEN, STEFAN
Exec Dt:
10/25/2019
2
ADAMSON, RICHARD
Exec Dt:
10/29/2019
3
PIRKL, GEORG
Exec Dt:
10/23/2019
Assignee
1
COVESTRO DEUTSCHLAND AG
KAISER-WILHELM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10759736
US20200123096
16598170
Correspondence name and address
COVESTRO LLC
1 COVESTRO CIRCLE
PITTSBURGH, PA 15205

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