CONTROLLING; REGULATING

Description

G05 CONTROLLING; REGULATING Covers devices, systems, and methods for automatic control and regulation of physical processes, including feedback mechanisms, closed-loop systems, and control instruments. Encompasses a broad range of applications such as temperature regulation, speed control, pressure management, and position adjustment across industrial, mechanical, and electronic systems. Includes both analog and digital control technologies, servomechanisms, governors, and automatic regulators used to maintain desired operational parameters. Excludes specific application-focused controls (e.g., engine ignition systems classified elsewhere) and general measurement instruments without feedback control capability.

Filing statistics

IPC G05 recorded 675,017 patent applications worldwide between 2013 and 2023, summed across its 4 subclasses. Annual filings grew from 37,793 in 2013 to 59,138 in 2023 (+56%), peaking at 74,742 applications in 2020. The most active applicants in class G05 are SIEMENS (4,725 applications), SGCC(STATE GRID CORPORATION OF CHINA) (4,571 applications) and FANUC (4,233 applications).

Source: EPO PATSTAT, worldwide filings