Amitoje India Pvt Ltd, authorized to manufacture and sell, and Ravinder Kaur, sole proprietor of patentee M/s Amitoje India, filed a 2024 suit against Classic Display Systems Pvt Ltd for infringing patent IN 533643 granted April 18, 2024 with priority October 17, 2018 for a foldable product display unit featuring tandem-moving shelves via connecting means and side panels folding sideways in the same direction, seeking permanent injunction against defendant's identical units; defendant filed counterclaim challenging validity on grounds including lack of inventive step over prior art US20100051568A1 published March 4, 2010. Procedurally, defendant's application to file additional documents including US'568 was initially deferred as unrelated to interim relief but later allowed for interim purposes after disputes and recall of part-heard release order on May 22, 2025 following plaintiffs' consent to address it on merits. The court analyzed no presumption of patent validity, defendant raised credible challenge as US'568 not cited in pre-grant opposition rejected by Controller, common general knowledge includes known foldable displays, suit patent's features are obvious workshop improvements over US'568's similar structure erecting by squeezing sides or displacing center panel without teaching away, thus vulnerable under Section 64(1)(f) Patents Act; no prima facie case for infringement, balance of convenience favors defendant with compensable harm to plaintiffs. Interim injunction application dismissed, defendant directed to file quarterly sales affidavits for similar products.
- No presumption of validity attaches to a granted patent, and vulnerability can be shown by credible challenge without proving actual invalidity at interim stage: Amitoje India Pvt Ltd & Anr. v. Classic Display Systems Pvt Ltd, CS(COMM) 765/2024 (High Court of Delhi, December 24, 2025), Para 25.
- Higher threshold for credible challenge applies only if same prior arts relied in oppositions and court; new prior art requires standard challenge: Amitoje India Pvt Ltd & Anr. v. Classic Display Systems Pvt Ltd, CS(COMM) 765/2024 (High Court of Delhi, December 24, 2025), Para 29.
- Common general knowledge for obviousness includes publicly known concepts like foldable display mechanisms, proven by standard works or competent witnesses: Amitoje India Pvt Ltd & Anr. v. Classic Display Systems Pvt Ltd, CS(COMM) 765/2024 (High Court of Delhi, December 24, 2025), Para 54.
- Prior art teaches away only if it discourages the claimed path, not merely by suggesting alternatives: Amitoje India Pvt Ltd & Anr. v. Classic Display Systems Pvt Ltd, CS(COMM) 765/2024 (High Court of Delhi, December 24, 2025), Para 85.
- Incremental changes like altering folding direction are mere workshop improvements lacking inventive step if within skilled person's routine capacity: Amitoje India Pvt Ltd & Anr. v. Classic Display Systems Pvt Ltd, CS(COMM) 765/2024 (High Court of Delhi, December 24, 2025), Para 82.
Case Title: Amitoje India Pvt Ltd & Anr. Vs Classic Display Systems Pvt. Ltd.
Order date: 24th December, 2025
Case Number: CS(COMM) 765/2024 & I.A. 38674/2024
Neutral Citation: N/A
Name of court: High Court of Delhi at New Delhi
Name of Judge: Hon'ble Ms. Justice Mini Pushkarna
[Readers are advised not to treat this as substitute for legal advise as it may contain errors in perception, interpretation, and presentation]
[Written By: Advocate Ajay Amitabh Suman, IP Adjutor [Patent and Trademark Attorney], High Court of Delhi]
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