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Patent Assignment Abstract of Title
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Total Assignments: 6
Patent #:
4512405
Issue Dt:
04/23/1985
Application #:
06584581
Filing Dt:
02/29/1984
Inventors:
RONALD E. SWEATMAN, EARL R. FREEMAN, JOHN GOTTSCHLING, JOHN SIMON
Title:
PNEUMATIC TRANSFER OF SOLIDS INTO WELLS
Assignment: 1
Reel/Frame:
004362/0238Recorded: 02/04/1985Pages: 1
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
SWEATMAN, RONALD E.
Exec Dt:
09/12/1983
Assignee:
HUGHES TOOL COMPANY
P.O. BOX 2539
A CORP OF DE
HOUSTON, TEXAS 77001
Correspondent:
ROBERT A. FELSMAN
CHIEF PAT. COUN., PAT. & TECH. MGMNT.
HUGHES TOOL CO., P.O. BOX 2539
HOUSTON, TX 77001
Assignment: 2
Reel/Frame:
004362/0237Recorded: 02/04/1985Pages: 1
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
FREEMAN, EARL R.
Exec Dt:
09/14/1983
Assignee:
HUGHES TOOL COMPANY
P.O. BOX 2539
A CORP OF DE
HOUSTON, TEXAS 77001
Correspondent:
ROBERT A. FELSMAN
CHIEF PAT. COUN., PAT. & TECH. MGMNT.
HUGHES TOOL CO., P.O. BOX 2539
HOUSTON, TX 77001
Assignment: 3
Reel/Frame:
004362/0239Recorded: 02/04/1985Pages: 1
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
SIMON, JOHN
Exec Dt:
02/15/1984
Assignee:
HUGHES TOOL COMPANY
P.O. BOX 2539
A CORP OF DE
HOUSTON, TEXAS
Correspondent:
ROBERT A. FELSMAN
CHIEF PAT. COUN., PAT. & TECH. MGMNT.
HUGHES TOOL CO., P.O. BOX 2539
HOUSTON, TX 77001
Assignment: 4
Reel/Frame:
004362/0240Recorded: 02/04/1985Pages: 1
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
GOTTSCHLING, JOHN
Exec Dt:
02/15/1984
Assignee:
HUGHES TOOL COMPANY
P.O. BOX 2539
HOUSTON, TEXAS 77001
Correspondent:
ROBERT A. FELSMAN
CHIEF PAT. COUN., PAT. & TECH. MGMNT.
HUGHES TOOL CO., P.O. BOX 2539
HOUSTON, TX 77001
Assignment: 5
Reel/Frame:
005050/0861Recorded: 08/08/1988Pages: 1
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
HUGHES TOOL COMPANY
Exec Dt:
06/09/1988
Assignee:
BAKER HUGHES INCORPORATED
3900 ESSEX,
HOUSTON,, TEXAS 77027
Correspondent:
JAMES E. BRADLEY
PATENTS & TECHNOLOGY MGMNT.
HUGHES TOOL CO.
P. O. BOX 2539
HOUSTON, TX 77252-2539
Assignment: 6
Reel/Frame:
005852/0291Recorded: 09/25/1991Pages: 7
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
BAKER HUGHES INCORPORATED
Exec Dt:
07/23/1990
Assignee:
BJ SERVICES COMPANY
A CORP. OF DE.
5500 NORTHWEST CENTRAL DRIVE
HOUSTON, TEXAS 77072
Correspondent:
CHARLES D. GUNTER, JR.
FELSMAN, BRADLEY, GUNTER & DILLON
2600 CONTINENTAL PLAZA
777 MAIN STREET
FORT WORTH, TX. 76102

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