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IPC Subclass
G09D

RAILWAY OR LIKE TIME OR FARE TABLES; PERPETUAL CALENDARS

Introduced: September 1968

Classification Context

Section:
PHYSICS
Class:
EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
Subclass:
RAILWAY OR LIKE TIME OR FARE TABLES; PERPETUAL CALENDARS

Description

Covers mechanical or analog display devices used for presenting railway timetables, transportation schedules, fare information, and perpetual calendar systems. Includes fixed or adjustable display mechanisms such as flip cards, rotating drums, sliding panels, and similar devices designed for public information purposes in transportation venues. Excludes digital electronic displays and automated ticketing systems, which fall under different classifications.

Additional Content

Calendar blocks in printed format

2 direct subcodes

Child Classifications

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  • G09D 1/00 Railway or like time or fare tables; Indicating or reading aids therefor

Top Applicants

Top 10 applicants by patent filingsfor class G09, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SAMSUNG DISPLAY KR 16,046
  2. BOE TECHNOLOGY GROUP COMPANY 13,766
  3. BOE TECHNOLOGY GROUP COMPANY CN 12,804
  4. LG DISPLAY COMPANY KR 10,322
  5. SAMSUNG ELECTRONICS COMPANY KR 7,738
  6. SAMSUNG DISPLAY 5,172
  7. SEMICONDUCTOR ENERGY LABORATORY COMPANY 4,749
  8. SEMICONDUCTOR ENERGY LABORATORY COMPANY JP 3,417
  9. LG DISPLAY COMPANY 3,335
  10. SONY CORPORATION JP 3,179