Tata Chemicals Limited v. The Assistant Controller Of Patents And Designs

When a government tribunal that has been adjudicating your patent dispute for years is suddenly dissolved overnight, where does your case go? For Tata Chemicals Limited, this was not a hypothetical question — it became a stark reality when India's Intellectual Property Appellate Board (IPAB) was abolished under the Tribunals Reform Act, 2021. The case serves as a powerful reminder that the legal infrastructure underpinning intellectual property disputes can shift beneath a company's feet, and founders must understand how procedural transitions can impact even the most established players.

Tata Chemicals Limited, one of India's most recognized industrial conglomerates, found itself in a patent dispute with the Assistant Controller of Patents. The matter had been pending before the Intellectual Property Appellate Board, the specialized body that historically handled appeals related to patent decisions made by the Patent Office. However, the legal landscape changed dramatically with the enactment of the Tribunals Reform Act, 2021, which dissolved several tribunals including the IPAB. As a result, all pending appeals were transferred to the respective High Courts. On 17 January 2023, the matter landed before the Calcutta High Court, which had to determine how to handle this inherited caseload.

The core legal friction in this case was not about the substantive patent issues themselves, but rather about procedural jurisdiction and transition. Tata Chemicals, as the petitioner, was seeking appellate review of a decision by the Assistant Controller of Patents. The respondent was the patent authority itself. The real question before the Calcutta High Court was procedural: how should the court absorb and process appeals that were originally filed before a now-defunct tribunal? The court had to establish a mechanism for receiving these transferred matters and ensuring that litigants like Tata Chemicals were not left in legal limbo.

On 17 January 2023, the Calcutta High Court addressed the procedural question by directing its Commercial Appellate Division to take cognizance of the matter. The court ordered that notices be issued to the relevant parties and that a report be filed before the matter could be set down for further hearing. The case was kept pending, awaiting the completion of these procedural steps. No substantive ruling on the underlying patent dispute was issued at this stage — the court's focus was squarely on ensuring a smooth transition of jurisdiction from the abolished IPAB to the High Court framework.

For founders, startup leaders, and IP professionals, this case underscores a critical lesson: the procedural architecture of intellectual property litigation is not static. The abolition of the IPAB and the transfer of its caseload to High Courts means that patent appeals now face different timelines, procedural rules, and forums than they did before 2021. Companies with pending or potential patent disputes must stay informed about which court has jurisdiction over their matters and adapt their legal strategies accordingly. More broadly, this case highlights the importance of building flexibility into your IP litigation strategy — because the forum, not just the facts, can determine the trajectory of your case.