The ruling outlines how courts should evaluate digital evidence when physical products aren’t produced and warns against potential AI misuses in patent litigation.

In a landmark ruling, the Delhi High Court ordered Rosenberger and Prose Technologies to pay Communication Components Antenna Inc. (CCAI) about Rs 152.32 crore in damages for patent infringement related to asymmetrical-beam telecom antennas.

The judgment stresses that Indian patent claims must be interpreted within the Indian context and rejects the broad 'mosaic' approach of tying unrelated prior art to prove obviousness.

The case has a long history with prior suits and international actions (US PTAB, European and Chinese offices), and this decision could become one of the largest Indian patent-damages awards.

Damages were calculated using a 20% reasonable royalty on disclosed antenna prices, based on a sealed licensing agreement, rather than lost profits.

Key legal issues addressed include novelty, inventive step, sufficiency under Indian law (Section 10), infringement, and the treatment of foreign office decisions versus Indian standards.

Delhi High Court upheld the validity of Indian Patent No. 240893 for asymmetrical beams in split-sector antennas, affirming novelty, inventive step, and sufficient disclosure.

A permanent injunction was granted, barring Rosenberger and its group companies from manufacturing or selling the infringing antenna models identified in the judgment.

Because Rosenberger did not produce actual antennas or undergo in-court testing, the court accepted CCAI’s MATLAB-based simulations and found marketing brochures alone insufficient as evidence.

The court issued a certificate of validity under Section 113 of the Patents Act and awarded full costs to the plaintiff.

Rosenberger allegedly sold antennas with identical asymmetric beam patterns in India, prompting the 2019 lawsuit after licensing negotiations failed.

Rosenberger Hochfrequenztechnik GmbH & Co. KG was found to infringe IN 9893 by manufacturing and selling multi-beam antennas that emit asymmetric beams while covering the same critical area.