PlainPatent

CPC technology class · G10

G10C - Pianos

Pianos, harpsichords, spinets or similar stringed musical instruments with one or more keyboards. 183 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

183
US patents granted
G10
Parent CPC class
7
Active assignees
+8%
5-yr velocity

The verdict

Pianos ranks #604 of 670 CPC technology areas - 183 US patents granted since 2015, with filing up 8% over five years.

#604
of 670 CPC technology areas
183
US patents granted, 2015–2025
Yamaha
leading assignee (68)
+8%
filing velocity, last 5 yrs
Top assignee: Yamaha Corporation (68 patents)

CPC subclass G10C - PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS - covers 183 US utility patents granted between 2015 and 2025 according to USPTO PatentsView records, within the broader CPC class G10 (MUSICAL INSTRUMENTS; ACOUSTICS). See our CPC classification guide for how the system works.

The competitive landscape in G10C is shaped by 7 distinct companies actively filing in this space. Yamaha Corporation leads with 68 patents, followed by Kabushiki Kaisha Kawai Gakki Seisakusho at 26 grants and Roland Corporation at 11.

Filing activity in G10C is up 8% over the past five years versus 2015-2019, a relatively steady filing pace. All counts come directly from USPTO PatentsView and reflect US granted utility patents only.

Is G10C innovation accelerating?

US utility-patent grants per year in G10C, 2015–2025 - recent five years are up 8% versus 2015–2019.

010203040 20152016201720182019202020212022202320242025 11

Who leads G10C?

The 12 most active assignees in PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS - wider bars mean more grants

patents

What this shows Yamaha is the most active filer in G10C, holding 68 of the 183 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 G10C
Rank Company Patents in G10C
#1 Yamaha Corporation 68
#2 Kabushiki Kaisha Kawai Gakki Seisakusho 26
#3 Roland Corporation 11
#4 Sunland Information Technology Co., Ltd. 11
#5 Kawai Musical Instruments Manufacturing Co., Ltd. 4
#6 Steinway Musical Instruments, Inc. 2
#7 Ableton Ag 2

About This Class

CPC subclass G10C belongs to class G10.

183 patents were granted in this class between 2015 and 2025.

7 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 G10C 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 7 G10C assignees by class footprint. Bubble size = patents in G10C. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Top 7 G10C assignees by class footprint. Bubble size = patents in G10C. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 7 data points (bubble-sized by third dimension). 6810121416 -20020406080 Patents in G10C Avg claims / patent (company-wide) YamahaKawai Gakki SeisakushoRolandSunland Information T…Kawai Musical Instrum…Steinway Musical Inst…Ableton
Top 7 G10C assignees by class footprint. Bubble size = patents in G10C. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class G10C?
CPC subclass G10C covers PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS. It belongs to CPC class G10 (MUSICAL INSTRUMENTS; ACOUSTICS), with 183 US utility patents granted since 2015.
How many patents have been filed in G10C?
183 US utility patents were granted in CPC subclass G10C between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in G10C?
Yamaha Corporation leads G10C with 68 patents, making it the most active assignee in this technology area.
How is patent data for G10C 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., G10) is a broad technology category. Subclasses like G10C 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.