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 : SIEFERT, ROLF
Total Assignments: 16
Assignment: 1
Reel/Frame:014358/0192   Pages: 4
Recorded: 02/19/2004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SCHWEFER, MEINHARD
Exec Dt:
01/30/2004
2
MOTZ, JOACHIM
Exec Dt:
02/04/2004
3
SIEFERT, ROLF
Exec Dt:
02/04/2004
Assignee
1
UHDE GMBH
FRIEDRICH-UHDE-STRASSE 15
44141 DORTMUND, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20040109805
10469392
Correspondence name and address
CONNOLLY BOVE LODGE & HUTZ LLP
ASHLEY I. PEZZNER
1007 NORTH ORANGE STREET
P.O. BOX 2207
WILMINGTON, DE 19899
Assignment: 2
Reel/Frame:016496/0523   Pages: 4
Recorded: 07/08/2005
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SCHWEFER, MEINHARD
Exec Dt:
02/04/2005
2
GROVES, MICHAEL
Exec Dt:
02/08/2005
3
SIEFERT, ROLF
Exec Dt:
02/14/2005
4
MAURER, RAINER
Exec Dt:
02/08/2005
Assignee
1
UHDE GMBH
FRIEDRICH-UHDE-STRASSE 15
DORTMUND, GERMANY 44141
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7462340
US20060051277
10516918
Correspondence name and address
BURTON A. AMERNICK
CONNOLLY BOVE LODGE & HUTZ LLP
1990 M STREET, N.W., SUITE 800
WASHINGTON, DC 20036-3425
Assignment: 3
Reel/Frame:020075/0319   Pages: 5
Recorded: 11/06/2007
Attorney Dkt #:09600-00046-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SCHWEFER, MEINHARD
Exec Dt:
10/26/2007
2
MOTZ, JOACHIM
Exec Dt:
10/08/2007
3
SIEFERT, ROLF
Exec Dt:
11/05/2007
Assignee
1
UHDE GMBH
FRIEDRICH-UHDE-STRASSE 15
DORTMUND, GERMANY 44141
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20080044331
11740608
Correspondence name and address
EAMONN P. MORRISON
THE NEMOURS BUILDING
1007 NORTH ORANGE STREET, P.O. BOX 2207
WILMINGTON, DE 19899
Assignment: 4
Reel/Frame:020597/0803   Pages: 5
Recorded: 03/04/2008
Attorney Dkt #:09600-00054-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SCHWEFER, MEINHARD
Exec Dt:
11/27/2007
2
SIEFERT, ROLF
Exec Dt:
12/03/2007
3
GROVES, MICHAEL
Exec Dt:
11/27/2007
Assignee
1
UHDE GMBH
FRIEDRICH-UHDE-STRASSE 15
DORTMUND, GERMANY 44141
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7744839
US20080241034
11913450
Correspondence name and address
EAMONN P. MORRISON
THE NEMOURS BUILDING
1007 NORTH ORANGE STREET, P.O. BOX 2207
WILMINGTON, DE 19899
Assignment: 5
Reel/Frame:023805/0645   Pages: 3
Recorded: 01/19/2010
Attorney Dkt #:207KU02.US (UG-09-1)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SCHWEFER, MEINHARD
Exec Dt:
12/16/2009
2
GROVES, MICHAEL
Exec Dt:
12/17/2009
3
FUCHS, JURGEN
Exec Dt:
12/17/2009
4
MAURER, RAINER
Exec Dt:
11/25/2009
5
SIEFERT, ROLF
Exec Dt:
12/04/2009
6
HUNDGEN, BERNHARD
Exec Dt:
12/17/2009
Assignee
1
UHDE GMBH
FRIEDRICH-UHDE-STRASSE 15
DORTMUNG, GERMANY 44141
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9108175
US20100166631
12451874
Correspondence name and address
MICHAEL W. FERRELL, ESQ.
FERRELLS, PLLC
P.O. BOX 312
CLIFTON, VIRGINIA 20124-1706
Assignment: 6
Reel/Frame:024282/0173   Pages: 5
Recorded: 04/23/2010
Attorney Dkt #:207KU04.US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SCHWEFER, MEINHARD
Exec Dt:
03/29/2010
2
SIEFERT, ROLF
Exec Dt:
03/25/2010
3
SEIFERT, FRANK
Exec Dt:
02/11/2010
4
FROEHLICH, FRANK
Exec Dt:
02/04/2010
5
BURCKHARDT, WOLFGANG
Exec Dt:
03/11/2010
Assignee
1
UHDE GMBH
FRIEDRICH-UHDE-STRASSE 15
DORTMUNG, GERMANY 44141
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8871673
US20100209325
12733147
Correspondence name and address
MICHAEL W. FERRELL
FERRELLS, PLLC
P.O. BOX 312
CLIFTON, VIRGINIA 20124-1706
Assignment: 7
Reel/Frame:027098/0644   Pages: 6
Recorded: 10/19/2011
Attorney Dkt #:208KU07.US (UG-11-4
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SCHWEFER, MEINHARD DR.
Exec Dt:
07/13/2011
2
GROVES, MICHAEL
Exec Dt:
08/05/2011
3
FUCHS, JURGEN
Exec Dt:
07/18/2011
4
MAURER, RAINDER
Exec Dt:
07/18/2011
5
SIEFERT, ROLF
Exec Dt:
07/01/2011
6
HUNDGEN, BERNHARD
Exec Dt:
07/18/2011
Assignee
1
UHDE GMBH
FRIEDRICH-UHDE-STRASSE 15
DORTMUND, GERMANY 44141
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9266081
US20120034148
12998775
Correspondence name and address
MICHAEL W. FERRELL, ESQ.
FERRELLS, PLLC
P.O. BOX 312
CLIFTON, VIRGINIA 20124-1706
Assignment: 8
Reel/Frame:026998/0893   Pages: 5
Recorded: 09/29/2011
Attorney Dkt #:208KU07.US (UG-11-4)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SCHWEFER, MEINHARD DR.
Exec Dt:
07/13/2011
2
GROVES, MICHAEL
Exec Dt:
08/05/2011
3
FUCHS, JURGEN
Exec Dt:
07/18/2011
4
MAURER, RAINDER
Exec Dt:
07/18/2011
5
SIEFERT, ROLF
Exec Dt:
07/14/2011
6
HUNDGEN, BERNHART
Exec Dt:
07/18/2011
Assignee
1
UHDE GMBH
FRIEDRICH-UHDE-STRASSE 15
DORTMUND, GERMANY 44141
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9266081
US20120034148
12998775
Correspondence name and address
MICHAEL W. FERRELL, ESQ.
FERRELLS, PLLC
P.O. BOX 312
CLIFTON, VIRGINIA 20124-1706
Assignment: 9
Reel/Frame:029723/0908   Pages: 4
Recorded: 01/30/2013
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SCHWEFER, MEINHARD
Exec Dt:
01/28/2013
2
GROVES, MICHAEL
Exec Dt:
01/22/2013
3
PERBANDT, CHRISTIAN
Exec Dt:
01/28/2013
4
SIEFERT, ROLF
Exec Dt:
01/18/2013
Assignee
1
THYSSENKRUPP UHDE GMBH
FRIEDRICH-UHDE-STRASSE 15
DORTMUND, GERMANY 44141
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10022669
US20130149225
13700853
Correspondence name and address
MICHAEL W. FERRELL, ESQ.
FERRELLS, PLLC
P.O. BOX 312
CLIFTON, VIRGINIA 20124-1706
Assignment: 10
Reel/Frame:031262/0540   Pages: 4
Recorded: 09/05/2013
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SCHWEFER, MEINHARD
Exec Dt:
07/26/2013
2
SIEFERT, ROLF
Exec Dt:
08/27/2013
3
FUCHS, JUERGEN
Exec Dt:
08/05/2013
4
RUTHARDT, KLAUS
Exec Dt:
07/30/2013
5
GROVES, MICHAEL
Exec Dt:
07/26/2013
Assignee
1
THYSSENKRUPP UHDE GMBH
FRIEDRICH-UHDE-STRASSE 15
DORTMUND, GERMANY 44141
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9738521
US20130336872
13984921
Correspondence name and address
MICHAEL W. FERRELL, ESQ.
FERRELLS, PLLC
P.O. BOX 312
CLIFTON, VIRGINIA 20124-1706
Assignment: 11
Reel/Frame:054241/0775   Pages: 4
Recorded: 11/02/2020
Attorney Dkt #:UG-13-1 D1 (THY0213-WO-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SCHWEFER, MEINHARD
Exec Dt:
07/26/2013
2
SIEFERT, ROLF
Exec Dt:
08/27/2013
3
FUCHS, JÜRGEN
Exec Dt:
08/05/2013
4
RUTHARDT, KLAUS
Exec Dt:
07/30/2013
5
GROVES, MICHAEL
Exec Dt:
07/26/2013
Assignee
1
THYSSENKRUPP INDUSTRIAL SOLUTIONS AG
THYSSENKRUPP ALLEE 1
ESSEN, GERMANY 45143
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10899617
US20170334722
15667293
Correspondence name and address
MICHAEL FERRELL
FERRELLS, PLLC
P.O. BOX 312
CLIFTON, VA 20124-1709
Assignment: 12
Reel/Frame:037005/0194   Pages: 2
Recorded: 11/10/2015
Attorney Dkt #:11080P90US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SCHWEFER, MEINHARD
Exec Dt:
06/30/2014
2
SIEFERT, ROLF
Exec Dt:
07/15/2014
3
PINNOW, STEFAN
Exec Dt:
06/30/2014
Assignee
1
THYSSENKRUPP INDUSTRIAL SOLUTIONS AG
THYSSENKRUPP ALLEE 1
ESSEN, GERMANY 45143
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9238196
US20140363359
14365949
Correspondence name and address
WILLIAM J. CASSIN
111 W. JACKSON BLVD.
SUITE 2400
CHICAGO, IL 60604
Assignment: 13
Reel/Frame:037223/0028   Pages: 9
Recorded: 12/07/2015
Attorney Dkt #:573903
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SCHWEFER, MEINHARD
Exec Dt:
10/27/2015
2
SIEFERT, ROLF
Exec Dt:
10/20/2015
3
RUTHARDT, KLAUS
Exec Dt:
10/12/2015
4
CREMONA, ALBERTO
Exec Dt:
11/20/2015
5
VOGNA, EDOARDO
Exec Dt:
11/09/2015
Assignee
1
THYSSENKRUPP INDUSTRIAL SOLUTIONS AG
THYSSENKRUPP ALLEE 1
ESSEN, GERMANY 45143
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10414654
US20160039674
14776422
Correspondence name and address
ANNA M. QUINN, LATHROP & GAGE LLP
2345 GRAND BLVD.
KANSAS CITY, MO 64108
Assignment: 14
Reel/Frame:050113/0057   Pages: 9
Recorded: 08/21/2019
Attorney Dkt #:614644
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SCHWEFER, MEINHARD
Exec Dt:
10/21/2015
2
SIEFERT, ROLF
Exec Dt:
10/20/2015
3
RUTHARDT, KLAUS
Exec Dt:
10/12/2015
4
CREMONA, ALBERTO
Exec Dt:
11/20/2015
5
VOGNA, EDOARDO
Exec Dt:
11/03/2015
Assignee
1
THYSSENKRUPP INDUSTRIAL SOLUTIONS AG
THYSSENKRUPP ALLEE 1
ESSEN, GERMANY 45143
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11820653
US20190359486
16534044
Correspondence name and address
ANNA M. QUINN, LATHROP GAGE L.L.P.
10851 MASTIN BLVD.
SUITE 1000
OVERLAND PARK, KS 66210
Assignment: 15
Reel/Frame:050209/0411   Pages: 9
Recorded: 08/29/2019
Attorney Dkt #:11153P91US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SCHWEFER, MEINHARD
Exec Dt:
10/21/2015
2
SIEFERT, ROLF
Exec Dt:
10/20/2015
3
RUTHARDT, KLAUS
Exec Dt:
10/12/2015
4
CREMONA, ALBERTO
Exec Dt:
11/20/2015
5
VOGNA, EDOARDO
Exec Dt:
11/09/2015
Assignee
1
THYSSENKRUPP INDUSTRIAL SOLUTIONS AG
THYSSENKRUPP ALLEE 1
ESSEN, GERMANY 45143
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11820653
US20190359486
16534044
Correspondence name and address
THYSSENKRUPP NORTH AMERICA INC. IP SERV.
111 W. JACKSON BLVD
SUITE 2400
CHICAGO, IL 60604
Assignment: 16
Reel/Frame:043469/0361   Pages: 5
Recorded: 09/01/2017
Attorney Dkt #:11056P90US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
FUCHS, JÜRGEN
Exec Dt:
08/17/2017
2
RUTHARDT, KLAUS
Exec Dt:
07/19/2017
3
SIEFERT, ROLF
Exec Dt:
08/23/2017
Assignees
1
THYSSENKRUPP INDUSTRIAL SOLUTIONS AG
THYSSENKRUPP ALLEE 1
ESSEN, GERMANY 45143
2
THYSSENKRUPP AG
THYSSENKRUPP ALLEE 1
ESSEN, GERMANY 45143
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10603648
US20170348660
15537540
Correspondence name and address
THYSSENKRUPP NORTH AMERICA, INC.
111 W. JACKSON BLVD.
SUITE 2400
CHICAGO, IL 60604

Search Results as of: 05/24/2024 10:05 PM
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