Patent Assignment Abstract of Title
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Total Assignments:
4
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Patent #:
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Issue Dt:
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09/16/1980
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Application #:
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05903304
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Filing Dt:
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05/05/1978
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Inventor:
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HORST K. F. BARTHEL
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Title:
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APPARATUS AND METHOD FOR REMOVING HYDROCARBONS FROM DRILL CUTTINGS
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Assignment:
1
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CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).
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| HUGHES TOOL COMPANY |
| P.O. BOX 2539 |
| HOUSTON, TX 77001 |
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Assignment:
2
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CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE DATE 8-26-80
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| HUGHES TOOL COMPANY |
| 5425 POLK AVENUE, P.O. BOX 2539 |
| HOUSTON, TEX. 77001 |
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Assignment:
3
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MERGER (SEE DOCUMENT FOR DETAILS). EFFECTIVE DATE 12/31/81 STATE OF INCORP. DEL.
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| HUGHES TOOL COMPANY |
| P.O. BOX 2539 |
| HOUSTON, TEX. 77001 |
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Assignment:
4
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ASSIGNMENT OF ASSIGNORS INTEREST.
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| 3900 ESSEX, |
| HOUSTON,, TEXAS 77027 |
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| JAMES E. BRADLEY |
| PATENTS & TECHNOLOGY MGMNT. |
| HUGHES TOOL CO. |
| P. O. BOX 2539 |
| HOUSTON, TX 77252-2539 |
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