Vifor International Ltd. vs Msn Laboratories Private Limited

Judicial Analysis Court Copy Headnote Facts Arguments Court observation

2023 Supreme(Del) 3038

JYOTI SINGH
Vifor International Ltd. – Appellant
Versus
Msn Laboratories Private Limited – Respondent

Advocates appeared:
Mr. Pravin Anand, Ms. Vaishali Mittal, Mr. Rohin Koolwal and Mr. Hersh Desai, Advocates, for VIFOR INTERNATIONAL.
Mr. J. Sai Deepak, Mr. G. Nataraj, Mr. Avinash K. Sharma, Mr. Ankur Vyas, Mr. Shashikant Yadav, Ms. Harshita Agarwal, Ms. Garima Joshi and Mr. Rahul Bhujbal, Advocates, for the Defendant in CS(COMM) 261/2021 and CS(COMM) 265/2021.
Ms. Rajeshwari H. and Mr. Tahir A.J., Advocates, for the Defendants in CS(COMM) 448/2022 and for the Plaintiffs in CS(COMM) 450/2022.

Table of Content
1. judgment addressing multiple applications. (Para 1 , 2)
2. details of vifor's patent and commercialization. (Para 3 , 4 , 5 , 6 , 10)
3. patent implementation and sales. (Para 7 , 8 , 9 , 11 , 12)
4. evidence of infringement by competitors. (Para 13 , 14 , 15 , 16)
5. arguments presented by vifor regarding patent claims. (Para 17 , 18 , 19)
6. supportive evidence for vifor’s claims. (Para 20 , 21 , 22 , 23 , 24 , 25 , 26)
7. arguments against the robustness of the patent claims. (Para 27 , 28 , 29 , 30 , 31 , 32 , 33)
8. counterarguments and defenses claimed by the defendants. (Para 34 , 35 , 36 , 37 , 38 , 39 , 40)
9. legal principles regarding product-by-process claims. (Para 41 , 42 , 43 , 44 , 45)
10. discussion on the law of patent, prior art and non-infringement. (Para 46 , 47 , 48 , 49 , 50 , 51)
11. determination of claim construction in infringement context. (Para 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59)
12. summary of trial court's analysis. (Para 60 , 61 , 62 , 63 , 64)
13. implications of claim construction on patent enforcement. (Para 65 , 66 , 67)
14. examination of patent law regarding prior art. (Para 68 , 69 , 70 , 71 , 72 , 73)
15. discussion on inn relevant to

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2023 Supreme(Del) 3038

JYOTI SINGHVifor International Ltd. – AppellantVersusMsn Laboratories Private Limited – Respondent

JYOTI SINGH
Vifor International Ltd. – Appellant
Versus
Msn Laboratories Private Limited – Respondent