PlainPatent

CPC technology class · G09

G09D - Railway Or Like Time Or Fare Tables

Railway or like time or fare tables; perpetual calendars. 9 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

9
US patents granted
#5/5
in G09
0.0%
G09 class share
-87%
5-yr velocity

The verdict

According to USPTO PatentsView, Railway Or Like Time Or Fare Tables ranks #663 of 670 CPC technology areas - 9 US patents granted since 2015, with recorded grant volume down 87% over five years.

#663
of 670 CPC technology areas
9
US patents granted, 2015–2025
International Business…
leading assignee (2)
-87%
grant velocity, last 5 yrs

How G09D's grant cadence moved

Between 2020–2024, G09D recorded 1 grants versus 8 in 2015–2019 (-87% equal-window velocity). Across complete years, output peaked in 2017 at 4 grants and bottomed in 2015 at 1 (+300% peak-over-trough). Lead assignee Progressive International Corp. holds 11.1% of the class .

Leaderboard read

G09D concentration, lead at 11.1%

Progressive International Corp. leads this historical grant record at 11.1% of G09D - foreign corporation assignees hold 50% of class grants (1 of 2). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share
11.1%

1 of 9 grants

Top three share
N/A

of the class's recorded grants

Lead over #2
0

more grants than Unibind Limited

Where G09D sits inside G09

Among 5 subclasses in G09 (EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; Seals), G09D ranks #5 and holds 0.0% of the parent class's 88,033 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.

G09G 62,527 G09B 12,324 G09F 11,061 G09C 2,112

G09D grants by year, peak 2017 (4)

US utility-patent grants per year in G09D, 2015–2025 - recent five years are down 87% versus 2015–2019.

012345 20152016201720182023 1

Who leads G09D?

The 12 most active assignees in Railway OR Like Time OR Fare TABLES; Perpetual Calendars - wider bars mean more grants

patents

What this shows International… is the most active filer in G09D, holding 2 of the 9 patents in this class. Concentration at the top signals how contestable this technology area is for new entrants.

Source USPTO PatentsView, granted utility patents As of 2015–2025 grant years
View data table
Top patent holders in CPC subclass G09D
Rank Company Patents in G09D
#1 Progressive International Corp. 1
#2 Unibind Limited 1

Questions about G09D

Which company holds the most patents in G09D?
International Business Machines Corporation leads G09D with 2 patents (11.1% of the subclass). By PatentsView assignee type, foreign corporations account for 50% of class grants.
How does G09D compare inside parent class G09?
Inside G09 (EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; Seals), G09D ranks #5 of 5 subclasses by grant volume and holds 0.0% of the parent class total. The largest sibling is G09G (62,527 grants).

What to do with this data

G09D in context - here's where to go next.

  • Progressive International Corp. leads G09D with 1 grants in this class. See full portfolio
  • G09D ranks #663 of 670 by grant volume among all tracked CPC technology areas. See the ranking
  • Inside parent class G09, the largest sibling subclass is G09G with 62,527 grants. Explore G09G

Figures reflect USPTO PatentsView grant data through 2026-05-15; pending applications not yet granted are not counted.

Methodology - G09D figures are USPTO PatentsView granted-utility totals for this subclass (9 grants in the tracked window).

Every figure on PlainPatent is rendered directly from USPTO source data, no number is typed in by an editor. This page draws directly on USPTO source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.