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Patent Assignment Assignor Details
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Assignor Name : PFEIFFER, HELMUT
Total Assignments: 26
Assignment: 1
Reel/Frame:004544/0806   Pages: 2
Recorded: 03/31/1986
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
PFEIFFER, HELMUT
Exec Dt:
03/13/1986
2
DREYER, VOLKER
Exec Dt:
03/13/1986
3
PFANDLER, MARTIN
Exec Dt:
03/13/1986
Assignee
1
ENDRESS U. HAUSER GMBH U. CO., A CORP OF GERMANY
HAUPTSTRASSE 1
7867 MAULBURG, FRANCE
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4594584
NONE
06656367
Correspondence name and address
BARNES & THORNBURG
1313 MERCHANTS BANK BLDG.
INDIANAPOLIS, IN 46204
Assignment: 2
Reel/Frame:004775/0758   Pages: 2
Recorded: 10/26/1987
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
PFEIFFER, HELMUT
Exec Dt:
02/26/1987
Assignee
1
ENDRESS U. HAUSER GMBH U. CO.
HAUPTSTRASSE 1,
7864 MAULBURG, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4718284
NONE
06852425
Correspondence name and address
BARNES AND THORNBURG
1313 MERCHANTS BANK BLDG.
INDIANAPOLIS, IN 46204
Assignment: 3
Reel/Frame:004775/0760   Pages: 2
Recorded: 10/26/1987
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
PFEIFFER, HELMUT
Exec Dt:
02/26/1987
Assignee
1
ENDRESS U. HAUSER GMBH U. CO.
HAUPSTRASSE 1
7864 MAULBURG, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4718285
NONE
06852521
Correspondence name and address
BARNES & THORNBURG
1313 MERCHANTS BANK BLDG.,
INDIANAPOLIS, IN 46204
Assignment: 4
Reel/Frame:005974/0071   Pages: 4
Recorded: 01/15/1992
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
PFEIFFER, HELMUT
Exec Dt:
11/14/1991
Assignee
1
ENDRESS U. HAUSER GMBH U. CO. A CORP. OF THE FEDERAL REPUBLIC OF GERMANY
HAUPTSTRASSE 1
7864 MAULBURG, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5264831
NONE
07667498
Correspondence name and address
BARNES & THORNBURG
1313 MERCHANTS BANK BUILDING
11 SOUTH MERIDIAN STREET
INDIANAPOLIS, IN 46204
Assignment: 5
Reel/Frame:009434/0921   Pages: 4
Recorded: 09/08/1998
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
PFEIFFER, HELMUT
Exec Dt:
08/19/1998
Assignee
1
ENDRESS + HAUSER GMBH + CO.
HAUPTSTRASSE 1
79689 MAULBURG, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6205855
NONE
08978763
Correspondence name and address
BOSE MCKINNEY & EVANS
JAMES A. COLES
135 N. PENNSYLVANIA STREET, #2700
INDIANAPOLIS, INDIANA 46204
Assignment: 6
Reel/Frame:009984/0589   Pages: 5
Recorded: 05/27/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
PFEIFFER, HELMUT
Exec Dt:
04/23/1999
2
GETMAN, IGOR
Exec Dt:
04/23/1999
3
LOPATIN, SERGEJ
Exec Dt:
04/23/1999
Assignee
1
ENDRESS + HAUSER GMBH + CO
HAUPTSTRASSE 1
MAULBURG, GERMANY 79689
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5966983
NONE
09156726
Correspondence name and address
BOSE MCKINNEY & EVANS
JAMES A. COLES
135 N. PENNSYLVANIA STREET, #2700
INDIANAPOLIS, IN 46204
Assignment: 7
Reel/Frame:009984/0594   Pages: 5
Recorded: 05/27/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
PFEIFFER, HELMUT
Exec Dt:
04/23/1999
2
KLOTZ-ENGMANN, GEROLD
Exec Dt:
04/23/1999
3
FLOGEL, KARL
Exec Dt:
04/23/1999
Assignee
1
ENDRESS + HAUSER GMBH + CO.
HAUPTSTRASSE 1
MAULBURG, GERMANY 79689
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6081064
NONE
09217033
Correspondence name and address
BOSE MCKINNEY & EVANS
JAMES A. COLES
135 N. PENNSYLVANIA ST. #2700
INDIANAPOLIS, IN 46204
Assignment: 8
Reel/Frame:011392/0570   Pages: 7
Recorded: 12/19/2000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LOPATIN, SERGEJ
Exec Dt:
11/22/2000
2
PFEIFFER, HELMUT
Exec Dt:
11/09/2000
3
MULLER, ALEXANDER
Exec Dt:
11/09/2000
4
DREYER, VOLKER
Exec Dt:
11/09/2000
5
BRUTSCHIN, WOLFGANG
Exec Dt:
11/09/2000
Assignee
1
ENDRESS + HAUSER GMBH + CO.
HAUPSTRASSE 1
MAULBURG, GERMANY D-796
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6236322
NONE
09388299
Correspondence name and address
BOSE MCKINNEY & EVANS
JAMES A. COLES, ESQ.
135 N. PENNSYLVANIA STREET, #2700
INDIANAPOLIS, IN 46204
Assignment: 9
Reel/Frame:014881/0560   Pages: 2
Recorded: 09/29/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
PFEIFFER, HELMUT
Exec Dt:
08/11/2003
Assignee
1
ENDRESS + HAUSER GMBH + CO. KG
HAUPTSTRASSE 1
79689 MAULBURG, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7102528
US20040085212
10472198
Correspondence name and address
JONES, TULLAR & COOPER, P.C.
FELIX J. D'AMBROSIO
P.O. BOX 2266, EADS STATION
ARLINGTON, VA 22202
Assignment: 10
Reel/Frame:016518/0201   Pages: 3
Recorded: 07/13/2005
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DESEMO, ROLF
Exec Dt:
06/10/2005
2
PFEIFFER, HELMUT
Exec Dt:
06/10/2005
Assignee
1
ENDRSS + HAUSER GMBH + CO. KG
HAUPSTRASSE 1
MAULBURG, GERMANY 79689
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7190105
US20060076854
10509685
Correspondence name and address
BACON & THOMAS, PLLC
625 SLATERS LANE
FOURTH FLOOR
ALEXANDRIA, VA 22314
Assignment: 11
Reel/Frame:017231/0687   Pages: 4
Recorded: 02/02/2006
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MUELLER, ALEXANDER
Exec Dt:
01/05/2006
2
HINTNER, GOTFRIED
Exec Dt:
01/13/2006
3
PFEIFFER, HELMUT
Exec Dt:
01/05/2006
Assignee
1
ENDRESS + HAUSER GMBH + CO. KG
HAUPTSTRASSE 1
D-79689 MAULBURG, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20060156835
10535912
Correspondence name and address
BACON & THOMAS, PLLC
625 SLATERS LANE
FOURTH FLOOR
ALEXANDRIA, VA 22314
Assignment: 12
Reel/Frame:017932/0365   Pages: 4
Recorded: 07/12/2006
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
PFEIFFER, HELMUT
Exec Dt:
02/13/2006
2
LOPATIN, SERGEJ
Exec Dt:
02/13/2006
Assignee
1
ENDRESS + HAUSER GMBH + CO. KG
HAUPSTRASSE 1
D-79689 MAULBURG, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7444245
US20070021931
10563964
Correspondence name and address
BACON & THOMAS, PLLC
625 SLATERS LANE
FOURTH FLOOR
ALEXANDRIA, VA 22314
Assignment: 13
Reel/Frame:019527/0810   Pages: 3
Recorded: 06/22/2007
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LOPATIN, SERGEJ
Exec Dt:
04/10/2006
2
PFEIFFER, HELMUT
Exec Dt:
04/10/2006
Assignee
1
ENDRESS & HAUSER GMBH & CO. KG
HAUPTSTRASSE 1
MAULBURG, GERMANY 79689
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7886602
US20070277608
10591297
Correspondence name and address
BACON & THOMAS, PLLC
625 SLATERS LANE
FOURTH FLOOR
ALEXANDRIA, VA 22314
Assignment: 14
Reel/Frame:018408/0006   Pages: 3
Recorded: 10/03/2006
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LOPATIN, SERGEJ
Exec Dt:
08/31/2006
2
PFEIFFER, HELMUT
Exec Dt:
08/31/2006
Assignee
1
ENDRESS + HAUSER GMBH + CO. KG
HAUPTSTRASSE 1
MAULBURG, GERMANY D-79689
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7530268
US20070028691
10554199
Correspondence name and address
BACON & THOMAS, PLLC
625 SLATERS LANE
FOURTH FLOOR
ALEXANDRIA, VA 22314
Assignment: 15
Reel/Frame:019022/0666   Pages: 4
Recorded: 03/09/2007
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BITTO, ENNIO
Exec Dt:
01/25/2007
2
ECKERT, GERHARD
Exec Dt:
01/25/2007
3
LOPATIN, SERGEJ
Exec Dt:
01/26/2007
4
MATT, CHRISTIAN
Exec Dt:
01/26/2007
5
PFEIFFER, HELMUT
Exec Dt:
01/26/2007
6
RIEDER, ALFRED
Exec Dt:
01/29/2007
7
ANKLIN-IMHOF, MARTIN
Exec Dt:
01/25/2007
8
STUCKI, MARTIN
Exec Dt:
01/26/2007
Assignee
1
ENDRESS+HAUSER FLOWTEC AG
KAGENSTRASSE 7
REINACH, SWITZERLAND CH-4153
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7325461
US20070151369
11634087
Correspondence name and address
BACON & THOMAS, PLLC
625 SLATERS LANE
FOURTH FLOOR
ALEXANDRIA, VA 22314
Assignment: 16
Reel/Frame:020569/0434   Pages: 2
Recorded: 02/13/2008
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
PFEIFFER, HELMUT
Exec Dt:
02/08/2008
Assignee
1
ENDRESS + HAUSER GMBH + CO. KG
HAUPSTRASSE 1
MAULBURG, GERMANY 79689
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7681445
US20080257035
11658147
Correspondence name and address
BACON & THOMAS, PLLC
625 SLATERS LANE
FOURTH FLOOR
ALEXANDRIA, VA 22314
Assignment: 17
Reel/Frame:023311/0067   Pages: 3
Recorded: 09/28/2009
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LOPATIN, SERGEJ
Exec Dt:
09/08/2008
2
PFEIFFER, HELMUT
Exec Dt:
09/08/2008
Assignee
1
ENDRESS + HAUSER GMBH + CO. KG
HAUPTSTRASSE 1
MAULBURG, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20100030486
12086644
Correspondence name and address
BACON & THOMAS, PLLC
625 SLATERS LANE
FOURTH FLOOR
ALEXANDRIA, VA 22314-1176
Assignment: 18
Reel/Frame:022178/0421   Pages: 3
Recorded: 01/21/2009
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KUHNY, JUTTA
Exec Dt:
11/20/2008
2
PFEIFFER, HELMUT
Exec Dt:
09/15/2008
Assignee
1
ENDRESS + HAUSER GMBH + CO. KG
HAUPTSTRASSE 1
MAULBURG, GERMANY 79689
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10234324
US20090126480
12224544
Correspondence name and address
FELIX J. D'AMBROSIO
BACON & THOMAS, PLLC
625 SLATERS LANE, FOURTH FLOOR
ALEXANDRIA, VIRGINIA 22314-1176
Assignment: 19
Reel/Frame:023743/0146   Pages: 3
Recorded: 01/04/2010
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LOPATIN, SERGEJ
Exec Dt:
07/31/2009
2
PFEIFFER, HELMUT
Exec Dt:
07/31/2009
3
D'ANGELICO, SASCHA
Exec Dt:
07/31/2009
Assignee
1
ENDRESS + HAUSER GMBH + CO. KG
HAUPTSTRASSE 1
MAULBURG, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8261615
US20100154546
12448948
Correspondence name and address
BACON & THOMAS, PLLC
625 SLATERS LANE
FOURTH FLOOR
ALEXANDRIA, VA 22314-1176
Assignment: 20
Reel/Frame:026454/0597   Pages: 3
Recorded: 06/16/2011
Attorney Dkt #:LOPA3015/FJD
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
URBAN, MARTIN
Exec Dt:
05/03/2011
2
LOPATIN, SERGEUJ
Exec Dt:
05/04/2011
3
PFEIFFER, HELMUT
Exec Dt:
05/05/2011
Assignee
1
ENDRESS + HAUSER GMBH + CO. KG
HAUPTSTR. 1
MAULBURG, GERMANY 79689
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8997556
US20120103088
13140174
Correspondence name and address
BACON & THOMAS, PLLC
625 SLATERS LANE
FOURTH FLOOR
ALEXANDRIA, VA 22314-1176
Assignment: 21
Reel/Frame:027692/0327   Pages: 3
Recorded: 02/13/2012
Attorney Dkt #:MULL3014/FJD
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
PFEIFFER, HELMUT
Exec Dt:
01/02/2012
2
MULLER, ALEXANDER
Exec Dt:
01/09/2012
3
DREYER, VOLKER
Exec Dt:
01/02/2012
4
LOPATIN, SERGEJ
Exec Dt:
01/02/2012
Assignee
1
ENDRESS + HAUSER GMBH + CO. KG
HAUPTSTR. 1
MAULBURG, GERMANY 79689
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8919192
US20120144901
13390160
Correspondence name and address
BACON & THOMAS, PLLC
625 SLATERS LANE
FOURTH FLOOR
ALEXANDRIA, VA 22314-1176
Assignment: 22
Reel/Frame:029679/0491   Pages: 3
Recorded: 01/23/2013
Attorney Dkt #:URBA3005/FJD
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
URBAN, MARTIN
Exec Dt:
12/13/2012
2
PFEIFFER, HELMUT
Exec Dt:
12/13/2012
3
DREYER, VOLKER
Exec Dt:
12/13/2012
Assignee
1
ENDRESS + HAUSER GMBH + CO. KG
HAUPTSTR. 1
MAULBURG, GERMANY 79689
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9377343
US20130118254
13811812
Correspondence name and address
BACON & THOMAS, PLLC
625 SLATERS LANE
FOURTH FLOOR
ALEXANDRIA, VA 22314-1176
Assignment: 23
Reel/Frame:034533/0410   Pages: 3
Recorded: 12/04/2014
Attorney Dkt #:PFEI3007/FJD
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
PFEIFFER, HELMUT
Exec Dt:
03/26/2014
2
MACK, BENJAMIN
Exec Dt:
06/10/2014
Assignee
1
ENDRESS + HAUSER GMBH + CO. KG
HAUPTSTR. 1
MAULBURG, GERMANY 79689
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9473070
US20140320224
14364098
Correspondence name and address
BACON & THOMAS, PLLC
625 SLATERS LANE
FOURTH FLOOR
ALEXANDRIA, VA 22314-1176
Assignment: 24
Reel/Frame:034631/0635   Pages: 3
Recorded: 12/15/2014
Attorney Dkt #:PFEI3007/FJD
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
PFEIFFER, HELMUT
Exec Dt:
03/26/2014
2
MACK, BENJAMIN
Exec Dt:
06/10/2014
Assignee
1
ENDRESS + HAUSER GMBH + CO. KG
HAUPTSTR. 1
MAULBURG, GERMANY 79689
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9473070
US20140320224
14364098
Correspondence name and address
BACON & THOMAS, PLLC
625 SLATERS LANE
4TH FLOOR
ALEXANDRIA, VA 22314
Assignment: 25
Reel/Frame:033382/0410   Pages: 4
Recorded: 07/24/2014
Attorney Dkt #:DREY3006/FJD
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DREYER, VOLKER
Exec Dt:
05/08/2014
2
LOPATIN, SERGEJ
Exec Dt:
04/30/2014
3
MACK, BENJAMIN
Exec Dt:
04/30/2014
4
MULLER, ALEXANDER
Exec Dt:
05/22/2014
5
PFEIFFER, HELMUT
Exec Dt:
05/13/2014
Assignee
1
ENDRESS + HAUSER GMBH + CO. KG
HAUPTSTR. 1
MAULBURG, GERMANY 79689
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10107670
US20140352427
14374275
Correspondence name and address
BACON & THOMAS, PLLC
625 SLATERS LANE
FOURTH FLOOR
ALEXANDRIA, VA 22314-1176
Assignment: 26
Reel/Frame:033916/0262   Pages: 3
Recorded: 10/08/2014
Attorney Dkt #:PFEI3008/FJD
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
PFEIFFER, HELMUT
Exec Dt:
07/26/2014
2
MACK, BENJAMIN
Exec Dt:
07/24/2014
Assignee
1
ENDRESS + HAUSER GMBH + CO. KG
HAUPTSTR. 1
MAULBURG, GERMANY 79689
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9829367
US20150068300
14391187
Correspondence name and address
BACON & THOMAS, PLLC
625 SLATERS LANE
FOURTH FLOOR
ALEXANDRIA, VA 22314-1176

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