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Patent Assignment Assignor Details
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Assignor Name : ELLIS, DARWIN V.
Total Assignments: 12
Assignment: 1
Reel/Frame:003992/0962   Pages: 2
Recorded: 04/01/1982
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
ELLIS, DARWIN V.
Exec Dt:
03/30/1981
Assignee
1
SCHLUMBGER TECHNOLOGY CORPORATION
277 PARK AVE.
A CORP. OF TX.
NEW YORK, NEW YORK 10172
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4542292
NONE
06364202
Correspondence name and address
IVAN S. KAVRUKOV
COOPER, DUNHAM, CLARK, GRIFFIN & MORAN
30 ROCKEFELLER PLAZA
NEW YORK, NY 10112
Assignment: 2
Reel/Frame:003938/0420   Pages: 2
Recorded: 12/22/1981
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
ELLIS, DARWIN V.
Exec Dt:
09/08/1981
2
FLAUM, CHARLES
Exec Dt:
09/08/1981
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION, A CORP. OF TX
277 PARK AVE.
NEW YORK, NEW YORK 10172
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4423323
NONE
06300418
Correspondence name and address
KENNETH OLSEN
SCHLUMBERGER-DOLL RESEARCH
P. O. BOX 307
RIDGEFIELD, CT 06877
Assignment: 3
Reel/Frame:004487/0574   Pages: 2
Recorded: 11/12/1985
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
ELLIS, DARWIN V.
Exec Dt:
11/04/1985
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION, A CORP OF TEXAS
NEW YORK, NEW YORK
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4645927
NONE
06797139
Correspondence name and address
BRUMBAUGH, GRAVES, DONOHUE & RAYMOND
30 ROCKEFELLER PLAZA
NEW YORK, NY 10112
Assignment: 4
Reel/Frame:004652/0804   Pages: 2
Recorded: 12/29/1986
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
ELLIS, DARWIN V.
Exec Dt:
12/08/1986
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
277 PARK AVENUE
A CORP. OF TEXAS
NEW YORK, NEW YORK 10172
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4810876
NONE
06905371
Correspondence name and address
PRUTZMAN, KALB, CHILTON & ALIX
ATTN: ROGER A. VAN KIRK
750 MAIN ST.
HARTFORD, CT 06103
Assignment: 5
Reel/Frame:004875/0564   Pages: 2
Recorded: 06/29/1987
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
ELLIS, DARWIN V.
Exec Dt:
06/29/1987
Assignee
1
SCHULUMBERGER TECHNOLOGY CORPORATION, A CORP. OF TX
277 PARK AVENUE
NEW YORK, NEW YORK 10172
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4816674
NONE
07067898
Correspondence name and address
DAVID P. GORDON
65 WOODS END ROAD
STAMFORD, CT 06905
Assignment: 6
Reel/Frame:006564/0300   Pages: 3
Recorded: 05/10/1993
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CASE, CHARLES R.
Exec Dt:
05/06/1993
2
ELLIS, DARWIN V.
Exec Dt:
05/07/1993
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
277 PARK AVENUE
NEW YORK, NEW YORK 10172
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5390115
NONE
08059689
Correspondence name and address
SCHLUMBERGER-DOLL RESEARCH
LEONARD W. POJUNAS
PATENT DEPARTMENT
OLD QUARRY ROAD
RIDGEFIELD, CT 06877
Assignment: 7
Reel/Frame:012020/0128   Pages: 4
Recorded: 07/19/2001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ELLIS, DARWIN V.
Exec Dt:
05/03/2001
2
DOGHMI, MOHAMMED
Exec Dt:
05/03/2001
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
P.O. BOX 2175
HOUSTON, TEXAS 77252
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6552334
US20020165670
09847501
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
VICTOR H. SEGURA
P.O. BOX 2175
HOUSTON, TX 77252-2175
Assignment: 8
Reel/Frame:015471/0141   Pages: 4
Recorded: 06/18/2004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ELLIS, DARWIN V.
Exec Dt:
02/11/2004
2
MARKLEY, MARVIN E.
Exec Dt:
01/28/2004
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
36 OLD QUARRY ROAD
RIDGEFIELD, CONNECTICUT 06877-4108
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7292942
US20040210393
10762690
Correspondence name and address
WILLIAM B. BATZER
SCHLUMBERGER-DOLL RESEARCH
INTELLECTUAL PROPERTY LAW DEPARTMENT
36 OLD QUARRY ROAD
RIDGEFIELD, CONNECTICUT 06877-4108
Assignment: 9
Reel/Frame:016742/0645   Pages: 6
Recorded: 11/07/2005
Attorney Dkt #:60.1597 US NP
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ELLIS, DARWIN V.
Exec Dt:
08/26/2005
2
FULTON, CHARLES
Exec Dt:
09/28/2005
3
KANDHAI, DHANOOLAL
Exec Dt:
10/06/2005
Assignee
1
SCHLUMBERGER TECHNOLOGY COMPANY
36 OLD QUARRY ROAD
RIDGEFIELD, CONNECTICUT 06877-4108
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7279677
US20070040110
11208831
Correspondence name and address
SCHLUMBERGER-DOLL RESEARCH
36 OLD QUARRY ROAD
RIDGEFIELD, CT 06877-4108
Assignment: 10
Reel/Frame:016807/0862   Pages: 8
Recorded: 11/22/2005
Attorney Dkt #:60.1597 CORRECT ASGMT
Conveyance: CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE'S NAME ON A DOCUMENT PREVIOUSLY RECORDED ON REEL 016742 FRAME 0645. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT OF ASSIGNOR'S INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ELLIS, DARWIN V.
Exec Dt:
08/26/2005
2
FULTON, CHARLES
Exec Dt:
09/28/2005
3
KANDHAI, DHANOOLAL
Exec Dt:
10/06/2005
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
36 OLD QUARRY ROAD
RIDGEFIELD, CONNECTICUT 06877-4108
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7279677
US20070040110
11208831
Correspondence name and address
SCHLUMBERGER-DOLL RESEARCH
36 OLD QUARRY ROAD
RIDGEFIELD, CT 06877-4108
Assignment: 11
Reel/Frame:020729/0188   Pages: 10
Recorded: 03/31/2008
Attorney Dkt #:60.1742 US NP
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZHOU, TONG
Exec Dt:
01/02/2008
2
CHEN, FELIX
Exec Dt:
01/09/2008
3
CASE, CHARLES R.
Exec Dt:
03/20/2008
4
ELLIS, DARWIN V.
Exec Dt:
03/21/2008
5
ROSCOE, BRADLEY ALBERT
Exec Dt:
01/04/2008
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
ONE HAMPSHIRE STREET
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8063356
US20110307179
11962161
Correspondence name and address
JAMES MCALEENAN
ONE HAMPSHIRE STREET
SCHLUMBERGER-DOLL RESEARCH
CAMBRIDGE, MA 02139
Assignment: 12
Reel/Frame:031643/0777   Pages: 8
Recorded: 11/20/2013
Attorney Dkt #:IS11.0178USPCT ASSIGNMENT
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ELLIS, DARWIN V.
Exec Dt:
11/19/2013
2
CASE, CHARLES
Exec Dt:
11/19/2013
3
CHIARAMONTE, JOSEPH M.
Exec Dt:
11/19/2013
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10422920
US20140088877
14119181
Correspondence name and address
SCHLUMBERGER - COE
WESTERNGECO 10001 RICHMOND AVE.
ROOM 3028
HOUSTON, TX 77042

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