Delhi high court restrains HFCL for manufacturing, sales of multitube cable as STL claims patent

The Delhi high court has restrained Himachal Futuristic Communications Limited (HFCL) and its subsidiaries for allegedly manufacturing and selling of optic fibre cable based on ‘ () multitube technology, in a patent infringement case. , on its part, said it is taking legal actions to get the order vacated.

“…this is to inform that Sterlite Technologies Limited has secured an ex‐parte ad‐interim injunction against Himachal Futuristic Communications Limited (HFCL) in a patent infringement litigation filed in Delhi High Court,” STL said in a notice to the stock exchanges on Thursday.

The court has restricted HFCL and its subsidiaries, directors, servants, agents, licensee or any related or parent companies, dealers and distributors from claiming any right in any manner, from making, manufacturing, using, offering for sale, exporting and importing the optical fibre cables based on STL’s multitube micro cable technology, a part of its optical networking portfolio.

On Wednesday, the court-appointed commissioners physically visited HFCL premises to verify the extent of the alleged infringement and for appropriate action, and according to STL, the officials have taken samples of the controversial optical fibre cables for its submission before the court.

HFCL, on its filing to the exchanges, said that the company has received an ex-parte order passed by the Delhi high court filed by STL, restraining the manufacturing and sales until the next date of hearing.

“The stakeholders are hereby informed that the sale of optical fiber cable covered under alleged Patent No. 335369 is insignificant to the company’s total sales of optical fiber cables,” HFCL in the notice said.

HFCL said that it has already initiated required legal actions to get the said restrain Order vacated and also for the cancellation of the subject patent.

Earlier this month, STL citing infringement of its patent number 335369 (144F variant) filed a case with the Delhi high court following which the ex-parte order was passed on January 12, 2022.


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