If a company goes bankrupt, it will undergo bankruptcy liquidation. Intellectual property rights such as patents and trademarks are assets of the company and will also undergo bankruptcy liquidation. If the patent right is transferred in accordance with the law, the patent will be inherited by the transferee; if the patent right is still retained after the liquidation is completed, due to the bankruptcy of the original patent company, it will be canceled and the owner of the patent right can be changed to the actual controller of the bankrupt company. , as long as the annual fee is paid on time, the patent right will continue to be valid.
Then you can check the status of this patent.