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`WESTERNGECO Exhibit 2121, pg. 1
`PGS v. WESTERNGECO
`IPR2014-01475
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`Case 4:09-cv-01827 Document 536 Filed in TXSD on 08/16/12 Page 2 of 8
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`WESTERNGECO Exhibit 2121, pg. 2
`PGS v. WESTERNGECO
`IPR2014-01475
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`Case 4:09-cv-01827 Document 536 Filed in TXSD on 08/16/12 Page 3 of 8
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`WESTERNGECO Exhibit 2121, pg. 3
`PGS v. WESTERNGECO
`IPR2014-01475
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`Case 4:09-cv-01827 Document 536 Filed in TXSD on 08/16/12 Page 4 of 8
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`WESTERNGECO Exhibit 2121, pg. 4
`PGS v. WESTERNGECO
`IPR2014-01475
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`Case 4:09-cv-01827 Document 536 Filed in TXSD on 08/16/12 Page 5 of 8
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`WESTERNGECO Exhibit 2121, pg. 5
`PGS v. WESTERNGECO
`IPR2014-01475
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`Case 4:09-cv-01827 Document 536 Filed in TXSD on 08/16/12 Page 6 of 8
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`WESTERNGECO Exhibit 2121, pg. 6
`PGS v. WESTERNGECO
`IPR2014-01475
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`Case 4:09-cv-01827 Document 536 Filed in TXSD on 08/16/12 Page 7 of 8
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`WESTERNGECO Exhibit 2121, pg. 7
`PGS v. WESTERNGECO
`IPR2014-01475
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`Case 4:09-cv-01827 Document 536 Filed in TXSD on 08/16/12 Page 8 of 8
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`WESTERNGECO Exhibit 2121, pg. 8
`PGS v. WESTERNGECO
`IPR2014-01475