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Patent Assignment Assignee Details
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Assignee Name : DRILLTEC PATENTS & TECHNOLOGIES COMPANY, INC.
Total Assignments: 15
Assignment: 1
Reel/Frame:006223/0785   Pages: 2
Recorded: 08/20/1992
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
BAKER, BRYAN C.
Exec Dt:
05/01/1992
Assignee
1
DRILLTEC PATENTS & TECHNOLOGIES COMPANY, INC.
10875 KEMPWOOD DRIVE
HOUSTON, TEXAS 77043
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5267648
NONE
07907718
Correspondence name and address
ALLEGRETTI & WITCOFF, LTD.
10 SOUTH WACKER DRIVE
CHICAGO, IL 60606
Assignment: 2
Reel/Frame:006430/0342   Pages: 3
Recorded: 02/25/1993
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
DREYFUSS, WILFRIED
Exec Dt:
02/17/1993
2
REMP, THOMAS E. JR.
Exec Dt:
02/17/1993
3
MULLER, KURT
Exec Dt:
02/17/1993
Assignee
1
DRILLTEC PATENTS & TECHNOLOGIES COMPANY, INC.
10875 KEMPWOOD DRIVE
HOUSTON, TEXAS 77043
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
4492666
NONE
06364474
 
4662402
NONE
06894705
Correspondence name and address
GEORGE B. NEWITT
ALLEGRETTI & WITCOFF, LTD.
TEN SOUTH WACKER DRIVE
CHICAGO, IL 60606
Assignment: 3
Reel/Frame:006430/0345   Pages: 3
Recorded: 02/25/1993
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
DREYFUSS, WILFRIED
Exec Dt:
02/17/1993
2
REMP, THOMAS E. JR.
Exec Dt:
02/17/1993
Assignee
1
DRILLTEC PATENTS & TECHNOLOGIES COMPANY, INC.
10875 KEMPWOOD DRIVE
HOUSTON, TEXAS 77043
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
4438783
NONE
06366981
 
4610362
NONE
06400096
 
4706822
NONE
06811695
Correspondence name and address
GEORGE B. NEWITT
ALLEGRETTI & WITCOFF, LTD.
TEN SOUTH WACKER DRIVE
CHICAGO, IL 60606
Assignment: 4
Reel/Frame:006844/0664   Pages: 3
Recorded: 01/07/1994
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
BAKER, BRYAN C.
Exec Dt:
12/14/1993
Assignee
1
DRILLTEC PATENTS & TECHNOLOGIES COMPANY, INC.
SUITE 2
10875 KEMPWOOD
HOUSTON, TEXAS 77043
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5556320
NONE
08178737
Correspondence name and address
JENKENS & GILCHRIST, P.C.
N. ELTON DRY
1100 LOUISIANA, SUITE 1800
HOUSTON, TEXAS 77002
Assignment: 5
Reel/Frame:007205/0340   Pages: 5
Recorded: 11/17/1994
Conveyance: RELEASE OF SECURITY INTERESTS & LIENS
Assignor
1
CHEMICAL VENTURE CAPITAL ASSOCIATES A CALIFORNIA LIMITED PARTNERSHIP
Exec Dt:
11/17/1994
Assignee
1
DRILLTEC PATENTS & TECHNOLOGIES COMPANY, INC.
10875 KEMPWOOD DRIVE, SUITE 2 HOUSTON, TX 77043
HOUSTON, TEXAS
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
4492666
NONE
06364474
 
4438783
NONE
06366981
 
4610362
NONE
06400096
 
4487229
NONE
06503419
 
4599778
NONE
06643476
 
4706822
NONE
06811695
 
4662402
NONE
06894705
 
4772198
NONE
06909635
 
4824143
NONE
07105790
 
4957141
NONE
07212795
Correspondence name and address
WINSTEAD SECHREST & MINICK
PHILIP T. GOLDEN
910 TRAVIS STREET, SUITE 1700
HOUSTON, TX 77002
Assignment: 6
Reel/Frame:009187/0520   Pages: 6
Recorded: 05/27/1998
Conveyance: TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS
Assignor
1
BANKBOSTON, N.A., BY CHANGE OF NAME FROM FIRST NATIONAL BANK OF BOSTON
Exec Dt:
07/31/1997
Assignee
1
DRILLTEC PATENTS & TECHNOLOGIES COMPANY, INC.
10875 KEMPWOOD DRIVE
HOUSTON, TEXAS 77043
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
4492666
NONE
06364474
 
4438783
NONE
06366981
 
4610362
NONE
06400096
 
4487229
NONE
06503419
 
4599778
NONE
06643476
 
4706822
NONE
06811695
 
4662402
NONE
06894705
 
4772198
NONE
06909635
 
4809752
NONE
07044838
 
4824143
NONE
07105790
 
4957141
NONE
07212795
 
5195562
NONE
07531107
 
5123547
NONE
07654586
 
5244015
NONE
07865712
 
5267648
NONE
07907718
 
5460566
NONE
08016724
 
5556320
NONE
08178737
Correspondence name and address
WINSTEAD SECHREST & MINICK P.C.
JAMES J. MURPHY
12001 ELM STREET, SUITE 5400
DALLAS, TX 75270
Assignment: 7
Reel/Frame:027846/0733   Pages: 6
Recorded: 03/12/2012
Attorney Dkt #:500897
Conveyance: RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS).
Assignor
1
BANKBOSTON, N.A. (FORMERLY FIRST NATIONAL BANK OF BOSTON)
Exec Dt:
07/31/1997
Assignee
1
DRILLTEC PATENTS & TECHNOLOGIES COMPANY, INC.
10875 KEMPWOOD, SUITE 2
HOUSTON, TEXAS 77043
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5460566
NONE
08016724
Correspondence name and address
TAYLOR P. EVANS, ESQ./ANDREWS KURTH LLP
600 TRAVIS, SUITE 4200
HOUSTON, TX 77002
Assignment: 8
Reel/Frame:009467/0634   Pages: 9
Recorded: 09/21/1998
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
RICHARDS, DARRELL R.
Exec Dt:
08/26/1998
2
THORNTON, WILLIAM
Exec Dt:
08/26/1998
3
BAKER, BRYAN C.
Exec Dt:
08/26/1998
4
CASTERAN, BERNARD F.
Exec Dt:
08/26/1998
5
FOORD, CAVIN
Exec Dt:
09/02/1998
Assignee
1
DRILLTEC PATENTS & TECHNOLOGIES COMPANY, INC.
10875 KEMPWOOD DRIVE, SUITE 2
HOUSTON, TEXAS 77043
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6261037
NONE
09120574
Correspondence name and address
CONLEY, ROSE & TAYON, P.C.
E. RANDALL SMITH
P.O. BOX 3267
HOUSTON, TEXAS 77253-3267
Assignment: 9
Reel/Frame:010119/0075   Pages: 12
Recorded: 07/26/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
RICHARDS, DARRELL R.
Exec Dt:
06/07/1999
2
RUSH, COLIN
Exec Dt:
06/07/1999
3
THORNTON, WILLIAM
Exec Dt:
06/24/1999
4
KING, HENRY CAMPBELL
Exec Dt:
06/17/1999
5
GRBIC, VINCENT DANKO
Exec Dt:
06/10/1999
6
ROSENBERG, EDGAR VON
Exec Dt:
06/24/1999
Assignee
1
DRILLTEC PATENTS & TECHNOLOGIES COMPANY, INC.
10875 KEMPWOOD DRIVE, SUITE 2
HOUSTON, TEXAS 77043
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6196270
NONE
09315865
Correspondence name and address
CONLEY, ROSE & TAYON, P.C.
DAVID A. ROSE
P.O. BOX 3267
HOUSTON, TEXAS 77253-3267
Assignment: 10
Reel/Frame:020234/0767   Pages: 13
Recorded: 12/13/2007
Attorney Dkt #:1769-02719
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
RUSH, COLIN
Exec Dt:
06/07/1999
2
RICHARDS, DARRELL R.
Exec Dt:
06/10/1999
3
THORNTON, WILLIAM
Exec Dt:
06/24/1999
4
KING, HENRY CAMPBELL
Exec Dt:
06/10/1999
5
GRBIC, VINCENT DANCO
Exec Dt:
06/10/1999
6
VON ROSENBERG, EDGAR
Exec Dt:
06/17/1999
Assignee
1
DRILLTEC PATENTS & TECHNOLOGIES COMPANY, INC.
10875 KEMPWOOD DRIVE, SUITE 2
HOUSTON, TEXAS 77043
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6367508
NONE
09799163
Correspondence name and address
CONLEY ROSE, P.C.
P.O. BOX 3267
HOUSTON, TX 77253-3267
Assignment: 11
Reel/Frame:012845/0845   Pages: 4
Recorded: 04/26/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BAKER, BRYAN C.
Exec Dt:
04/23/2002
2
CLEM, DAVID W.
Exec Dt:
04/23/2002
Assignee
1
DRILLTEC PATENTS & TECHNOLOGIES COMPANY, INC.
10875 KEMPWOOD, SUITE 2
HOUSTON, TEXAS 77043
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7419198
US20030201653
10133008
Correspondence name and address
CONLEY, ROSE & TAYON, P.C.
JONATHAN PIERCE
P.O. BOX 3267
HOUSTON, TX 7753-3267
Assignment: 12
Reel/Frame:013345/0287   Pages: 4
Recorded: 09/26/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WEIGELDT, DARRELL J.
Exec Dt:
09/24/2002
2
CLEM, DAVID W.
Exec Dt:
09/24/2002
Assignee
1
DRILLTEC PATENTS & TECHNOLOGIES COMPANY, INC.
10875 KEMPWOOD
SUITE 2
HOUSTON, TEXAS 77043
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6848584
US20040060856
10255504
Correspondence name and address
CONLEY, ROSE & TAYON, P.C.
JONATHAN PIERCE
P.O. BOX 3267
HOUSTON, TX 77253-3267
Assignment: 13
Reel/Frame:013731/0582   Pages: 3
Recorded: 01/31/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
CASTERAN, BERNARD
Exec Dt:
01/16/2003
Assignee
1
DRILLTEC PATENTS & TECHNOLOGIES COMPANY, INC.
10875 KEMPWOOD, SUITE 2
HOUSTON, TEXAS 77043
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7080864
US20030205907
10355499
Correspondence name and address
CONLEY ROSE, P.C.
JONATHAN PIERCE
P.O. BOX 3267
HOUSTON, TEXAS 77253-3267
Assignment: 14
Reel/Frame:014873/0036   Pages: 3
Recorded: 01/06/2004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
CASTERAN, BERNARD
Exec Dt:
12/22/2003
Assignee
1
DRILLTEC PATENTS & TECHNOLOGIES COMPANY, INC.
10875 KEMPWOOD, SUITE 2
HOUSTON, TEXAS 77043
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20050045240
10752161
Correspondence name and address
CONLEY ROSE, P.C.
DEREK V. FORINASH
P.O. BOX 3267
HOUSTON, TEXAS 77253-3267
Assignment: 15
Reel/Frame:022308/0491   Pages: 4
Recorded: 02/25/2009
Attorney Dkt #:12014-0076
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
YAMAMOTO, YASUHIRO
Exec Dt:
11/05/2008
2
NAGASAKU, SHIGEO
Exec Dt:
11/05/2008
3
CLEM, DAVID W.
Exec Dt:
12/12/2008
Assignees
1
SUMITOMO METAL INDUSTRIES, LTD.
5-33, KITAHAMA 4-CHOME, CHUO-KU, OSAKA-SHI
OSAKA, JAPAN 541-0041
2
DRILLTEC PATENTS & TECHNOLOGIES COMPANY, INC.
10875 KEMPWOOD DRIVE
SUITE 2
HOUSTON, TEXAS 77043
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8622091
US20100038904
12222694
Correspondence name and address
CLARK & BRODY
1090 VERMONT AVENUE, N.W.
SUITE 250
WASHINGTON, DC 20005

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