G09 EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
Description
G09 encompasses diverse technologies and systems for information presentation, protection, and communication. This broad class includes educational devices and methods, cryptographic systems for secure data transmission and authentication, visual display technologies, advertising mechanisms, and security seals or marks. The classification serves as a top-level category that branches into specialized subclasses covering everything from chalk boards and projectors to encryption algorithms, LED/LCD displays, and anti-counterfeiting measures. Adjacent classes in Section G handle more specific physics-based technologies, while G09 focuses on the systematic organization and presentation of information across these multiple application domains.
Filing statistics
CPC G09 recorded 501,513 patent applications worldwide between 2013 and 2023, summed across its 5 subclasses. Annual filings grew from 30,816 in 2013 to 42,532 in 2023 (+38%), peaking at 57,037 applications in 2020. The most active applicants in class G09 are SAMSUNG DISPLAY (22,477 applications), BOE TECHNOLOGY GROUP COMPANY (16,016 applications) and BOE TECHNOLOGY GROUP COMPANY (12,918 applications).
Source: EPO PATSTAT, worldwide filings
5 direct subcodes
Child Classifications
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- G09B EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS (devices for psychotechnics or for testing reaction times A61B5/16; games, sports, amusements A63; projectors, projector screens G03B)
- G09C CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
- G09D RAILWAY OR LIKE TIME OR FARE TABLES; PERPETUAL CALENDARS (calendar blocks B42D5/04; clockwork driven G04B; comprising computing means G06C)
- G09F DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09G ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)
Top Applicants
Top 10 applicants by patent filings, 2013–2023, worldwide · Source: EPO PATSTAT
- SAMSUNG DISPLAY KR 22,477
- BOE TECHNOLOGY GROUP COMPANY CN 16,016
- BOE TECHNOLOGY GROUP COMPANY 12,918
- LG DISPLAY COMPANY KR 12,599
- SAMSUNG ELECTRONICS COMPANY KR 12,009
- SAMSUNG DISPLAY 6,252
- SEMICONDUCTOR ENERGY LABORATORY COMPANY JP 4,410
- SONY CORPORATION JP 3,965
- LG ELECTRONICS KR 3,901
- LG DISPLAY COMPANY 3,705