Group 1 - The core point of the article is that Tianjin New Land Petroleum Technology Co., Ltd. has obtained a patent for a "petroleum extraction packer with an expandable sealing structure," with the authorization announcement number CN120844967B and an application date of September 2025 [1] - Tianjin New Land Petroleum Technology Co., Ltd. was established in 2018 and is located in Tianjin, primarily engaged in wholesale business, with a registered capital of 20 million RMB [1] - The company has participated in 102 bidding projects and holds 25 patent information records, in addition to having 4 administrative licenses [1]