
Delhi High Court upholds the validity of Dura-Line’s patent and directs the Defendant to render its statement of accounts of profits and pay full commercial costs; Protects the essence of the Invention
The Hon’ble High Court of Delhi pronounced its judgment on 19th May, 2025 in a decade old lis between Dura-Line India Pvt. Ltd. (‘Plaintiff’) and Jain Irrigation Systems Ltd. (‘Defendant’). The Hon’ble Court adjudicated on a crucial question as to whether the Plaintiff’s claimed invention constituted a genuine technical advance meriting patent protection, or whether it amounted to no more than a routine and obvious refinement of pre-existing knowledge.
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