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`UNITED STATES PATENT AND TRADEMARK OFFICE
`
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
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`CELLTRION, INC.,
`Petitioner,
`
`v.
`
`REGENERON PHARMACEUTICALS, INC.,
`Patent Owner.
`
` IPR2024-00260
`U.S. Patent No. 11,253,572
`
`PETITIONER’S POWER OF ATTORNEY
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`
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`Pursuant to 37 C.F.R. § 42.10(b), Petitioner Celltrion, Inc., hereby appoints the
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`practitioners associated with Gemini Law LLP, Customer Number 192101, including the
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`following lead and back-up counsel, as its attorneys to transact all business in the United
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`States Patent & Trademark Office associated with petitions for inter partes review of U.S.
`
`Patent 11,253,572:
`
`
`Lead Counsel
`Lora Green (Reg. No. 43,541)
`Gemini Law LLP
`40 W 24th Street, Suite 6N
`New York, NY 10010
`Tel.: 917-915-8832
`Email: lgreen@geminilaw.com
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`
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`1
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`Backup Counsel
`Yahn-Liu Chu (Reg. No. 75,946)
`Gemini Law LLP
`40 W 24th Street, Suite 6N
`New York, NY 10010
`Tel.: 917-915-8832
`Email: fchu@geminilaw.com
`
`Robert Cerwinski (to be admitted pro
`hac vice, pending)
`Gemini Law LLP
`40 W 24th Street, Suite 6N
`New York, NY 10010
`Tel.: 917-915-8832
`Email: rcerwinski@geminilaw.com
`
`Aviv Zalcenstein (to be admitted pro hac
`vice, pending)
`Gemini Law LLP
`40 W 24th Street, Suite 6N
`New York, NY 10010
`Tel.: 917-915-8832
`Email: azalcenstein@geminilaw.com
`
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`
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`Lead Counsel
`
`Email: bmorris@geminilaw.com
`
`Brigid Morris (to be admitted pro hac
`vice, pending)
`Gemini Law LLP
`40 W 24% Street, Suite 6N
`New York, NY 10010
`Tel.: 917-915-8832
`
`4 Apc
`
`For: Petitioner Celltrion, Inc.
`
`Name: Kyungha Shin
`
`Title: Vice President
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`Date:
`
`if = Nec
`
`2023
`
`