Group 1 - The core point of the article is that Beijing Baidu Netcom Technology Co., Ltd. has obtained a patent for a method and device for determining the state of charge of a battery, with the patent granted on August 13, 2025, and the application date being April 2023 [1] - The company was established in 2001 and is primarily engaged in internet and related services, with a registered capital of 1,342,128,000 RMB [1] - Baidu has invested in 76 companies and participated in 3,069 bidding projects, holding 1,004 trademark records and 5,000 patent records, along with 57 administrative licenses [1]