Patent Assignment Abstract of Title
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Total Assignments:
5
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Patent #:
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Issue Dt:
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06/25/2002
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Application #:
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09474149
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Filing Dt:
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12/29/1999
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Inventors:
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KEWEI ZHANG, RON PIERCE, NICOLE DEANNE LITT, D.V. SATYANARAYANA GUPTA
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Title:
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FOAM-FLUID FOR FRACTURING SUBTERRANEAN FORMATIONS
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Assignment:
1
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| 1300 801-6TH AVENUE, S.W. |
| CALGARY, ALBERTA, T2P 3G3, CANADA |
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| BRACEWELL & PATTERSON, LLP |
| CHARLES D. GUNTER, JR. |
| 201 MAIN STREET, SUITE 1600 |
| FORT WORTH, TX 76102 |
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Assignment:
2
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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| 6620 - 36TH STREET, S.E. |
| CALGARY, ALBERTA, CANADA T2C 2 |
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| LERNER, DAVID, LITTENBERG, ET AL. |
| ARNOLD H. KRUMHOLZ |
| 600 SOUTH AVENUE WEST |
| WESTFIELD, NJ 07090 |
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Assignment:
3
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CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).
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| 1300 801-6TH AVENUE, S.W. |
| CALGARY, ALBERTA, T2P 4L8, CANADA |
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| BRACEWELL & PATTERSON, LLP |
| CHARLES D. GUNTER, JR. |
| 201 MAIN STREET, SUITE 1600 |
| FORT WORTH, TX 76102 |
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Assignment:
4
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CERTIFICATE OF AMALGAMATION
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| GULF CANADA SQUARE 1000401 9 AVENUE SOUTHWEST |
| CALGARY, ALBERTA, CANADA T2P 3C5 |
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| BERESKIN & PARR LLP/ S.E.N.C.R.L./S.R.L. |
| 40 KING STREET WEST |
| 40TH FLOOR |
| TORONTO, M5H 3Y2 CANADA |
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Assignment:
5
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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| 2929 ALLEN PARKWAY, SUITE 2100 |
| HOUSTON, TEXAS 770192118 |
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| BERESKIN & PARR LLP/ S.E.N.C.R.L./S.R.L. |
| 40 KING STREET WEST |
| 40TH FLOOR |
| TORONTO, M5H 3Y2 CANADA |
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