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CPC technology class · G03

G03G - Electrography

Electrography; electrophotography; magnetography. 26,691 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

26,691
US patents granted
G03
Parent CPC class
20
Active assignees
-34%
5-yr velocity

The verdict

Electrography ranks #77 of 670 CPC technology areas - 26,691 US patents granted since 2015, with filing down 34% over five years.

#77
of 670 CPC technology areas
26,691
US patents granted, 2015–2025
Canon
leading assignee (7,776)
-34%
filing velocity, last 5 yrs
Top assignee: Canon Kabushiki Kaisha (7,776 patents)

CPC subclass G03G - ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY - covers 26,691 US utility patents granted between 2015 and 2025 according to USPTO PatentsView records, within the broader CPC class G03 (PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY). See our CPC classification guide for how the system works.

The competitive landscape in G03G is shaped by 20 distinct companies actively filing in this space. Canon Kabushiki Kaisha leads with 7,776 patents, followed by Ricoh Company, Ltd. at 2,685 grants and Kyocera Document Solutions Inc. at 2,506.

Filing activity in G03G is down 34% over the past five years versus 2015-2019, a notable slowdown that may signal a maturing field. All counts come directly from USPTO PatentsView and reflect US granted utility patents only.

Is G03G innovation accelerating?

US utility-patent grants per year in G03G, 2015–2025 - recent five years are down 34% versus 2015–2019.

01,0002,0003,0004,0005,000 20152016201720182019202020212022202320242025 1,043

Who leads G03G?

The 12 most active assignees in ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY - wider bars mean more grants

patents

What this shows Canon is the most active filer in G03G, holding 7,776 of the 26,691 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 G03G
Rank Company Patents in G03G
#1 Canon Kabushiki Kaisha 7,776
#2 Ricoh Company, Ltd. 2,685
#3 Kyocera Document Solutions Inc. 2,506
#4 Brother Kogyo Kabushiki Kaisha 2,407
#5 FUJI Xerox Co., Ltd. 1,546
#6 Konica Minolta, Inc. 1,431
#7 Toshiba TEC Kabushiki Kaisha 1,253
#8 Hewlett-packard Development Company, L.p. 786
#9 Kabushiki Kaisha Toshiba 623
#10 Xerox Corporation 620
#11 Fujifilm Business Innovation Corp. 611
#12 Lexmark International, Inc. 500
#13 Sharp Kabushiki Kaisha 431
#14 Oki Data Corporation 394
#15 HP Indigo B.v. 245
#16 Canon Finetech Nisca Inc. 124
#17 Mitsubishi Chemical Corporation 84
#18 S-printing Solution Co., Ltd. 84
#19 Eastman Kodak Company 78
#20 Oki Electric Industry Co., Ltd. 72

About This Class

CPC subclass G03G belongs to class G03.

26,691 patents were granted in this class between 2015 and 2025.

20 companies actively patent in this space.

Classification System

Cooperative Patent Classification (CPC) is a hierarchical patent classification system used by the USPTO and EPO.

← All Technology Classes Technology Rankings →

Footprint here vs. claim strategy

Each dot is a leading G03G assignee, placed by how many patents it holds in this class (horizontal) against its company-wide average claims per patent (vertical) - a read on whether the class is led by broad-but-shallow filers or focused deep-claim players.

Top 14 G03G assignees by class footprint. Bubble size = patents in G03G. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Top 14 G03G assignees by class footprint. Bubble size = patents in G03G. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 81012141618 0200040006000800010000 Patents in G03G Avg claims / patent (company-wide) CanonRicohKyocera Document Solu…Brother KogyoFuji XeroxKonica MinoltaToshiba TecHewlett-packard Devel…ToshibaXeroxFujifilm Business Inn…Lexmark InternationalSharpOki Data
Top 14 G03G assignees by class footprint. Bubble size = patents in G03G. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class G03G?
CPC subclass G03G covers ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY. It belongs to CPC class G03 (PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY), with 26,691 US utility patents granted since 2015.
How many patents have been filed in G03G?
26,691 US utility patents were granted in CPC subclass G03G between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in G03G?
Canon Kabushiki Kaisha leads G03G with 7,776 patents, making it the most active assignee in this technology area.
How is patent data for G03G collected?
Patent data comes from USPTO PatentsView, a public research dataset maintained by the United States Patent and Trademark Office. It covers all US granted utility patents and assigns CPC codes based on the technology described in each patent.
What is the difference between CPC class and subclass?
A CPC class (e.g., G03) is a broad technology category. Subclasses like G03G provide finer granularity within that category. PlainPatent organizes data at the subclass level (4-character codes) for the most useful view of technology domains.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

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.