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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 grant trajectory.

26,691
US patents granted
#1/6
in G03
36.5%
G03 class share
-41%
5-yr velocity

The verdict

According to USPTO PatentsView, Electrography ranks #77 of 670 CPC technology areas - 26,691 US patents granted since 2015, with recorded grant volume down 41% over five years.

#77
of 670 CPC technology areas
26,691
US patents granted, 2015–2025
Canon
leading assignee (7,776)
-41%
grant velocity, last 5 yrs

How tightly G03G concentrates

Canon Kabushiki Kaisha holds 29.1% of G03G's recorded grants (7,776 of 26,691) - 5,091 more than Ricoh Company, Ltd.. Across complete PatentsView years, the class peaked in 2015 at 3,933 grants and bottomed in 2024 at 1,502 (+162% peak-over-trough). Equal-window velocity 2020–2024 vs 2015–2019: -41% (9,232 vs 15,634 grants).

Leaderboard read

G03G concentration, lead at 29.1%

Canon Kabushiki Kaisha leads this historical grant record at 29.1% of G03G - foreign corporation assignees hold 91% of class grants (23,425 of 25,668). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share
29.1%

7,776 of 26,691 grants

Top three share
48.6%

of the class's recorded grants

Lead over #2
5,091

more grants than Ricoh Company, Ltd.

Where G03G sits inside G03

Among 6 subclasses in G03 (PHOTOGRAPHY; CINEMATOGRAPHY; Analogous Techniques Using Waves Other Than Optical WAVES; ELECTROGRAPHY; Holography), G03G ranks #1 and holds 36.5% of the parent class's 73,096 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.

G03B 21,728 G03F 21,670 G03H 2,738 G03C 231 G03D 38

Rising assignees active in G03G

Company-wide grant multiples (2022–2024 vs 2019–2021) among assignees with ≥5 patents in this subclass. Growth is company-wide; class patent counts are subclass-specific.

  1. #1 Zhuhai Pantum Electronics Co., Ltd. 6.00x 9 → 54 company-wide · 31 in G03G
  2. #2 Fujifilm Business Innovation Corp. 3.88x 380 → 1,473 company-wide · 611 in G03G
  3. #3 Xeikon Manufacturing N.V. 1.80x 5 → 9 company-wide · 10 in G03G
  4. #4 Impossible Objects, Inc. 1.54x 11 → 17 company-wide · 6 in G03G
  5. #5 Sanyo Chemical Industries, Ltd. 1.53x 19 → 29 company-wide · 15 in G03G

G03G grants by year, peak 2015 (3,933)

US utility-patent grants per year in G03G, 2015–2025 - recent five years are down 41% 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

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). Scatter plot of 14 data points (bubble-sized by third dimension). 81012141618 0200040006000800010000 Patents in G03G Avg claims / patent (company-wide) CanonRicohKyocera Document…Brother KogyoFuji XeroxKonica MinoltaToshiba TecHewlett-packard…ToshibaXeroxFujifilm Business…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).

Classes near G03G's 26,691-grant footprint

Nationwide nearest neighbors for G03G (#77 of 670 by volume ; lead share 29.1%) - not the G03 parent-class siblings above.

Nearest by grant volume

B41J 26,654 H02K 26,848 G08G 27,080 G06K 27,107

Nearest by lead-assignee share

A01F 30.5% F23R 26.3% A01H 25.9% D06F 25.6%

Questions about G03G

Which company holds the most patents in G03G?
Canon Kabushiki Kaisha leads G03G with 7,776 patents (29.1% of the subclass). By PatentsView assignee type, foreign corporations account for 91% of class grants.
Which G03G assignees grew fastest recently?
Among assignees with ≥5 grants in G03G, Zhuhai Pantum Electronics Co., Ltd. shows the highest company-wide grant multiple (6.00x: 9 grants in 2019–2021 → 54 in 2022–2024) while holding 31 patents in this subclass. Growth is company-wide, not class-only.
How does G03G compare inside parent class G03?
Inside G03 (PHOTOGRAPHY; CINEMATOGRAPHY; Analogous Techniques Using Waves Other Than Optical WAVES; ELECTROGRAPHY; Holography), G03G ranks #1 of 6 subclasses by grant volume and holds 36.5% of the parent class total. The largest sibling is G03B (21,728 grants).

What to do with this data

G03G in context - here's where to go next.

  • Canon Kabushiki Kaisha leads G03G with 7,776 grants in this class. See full portfolio
  • G03G ranks #77 of 670 by grant volume among all tracked CPC technology areas. See the ranking
  • Inside parent class G03, the largest sibling subclass is G03B with 21,728 grants. Explore G03B

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

Methodology - G03G figures are USPTO PatentsView granted-utility totals for this subclass (26,691 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.