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CPC technology class · G10

G10D - Stringed Musical Instruments

Stringed musical instruments; wind musical instruments; accordions or concertinas; percussion musical instruments; aeolian harps; singing-flame musical instruments; musical instruments not otherwise provided for. 828 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

828
US patents granted
G10
Parent CPC class
20
Active assignees
-14%
5-yr velocity

The verdict

Stringed Musical Instruments ranks #479 of 670 CPC technology areas - 828 US patents granted since 2015, with filing down 14% over five years.

#479
of 670 CPC technology areas
828
US patents granted, 2015–2025
Yamaha
leading assignee (79)
-14%
filing velocity, last 5 yrs
Top assignee: Yamaha Corporation (79 patents)

CPC subclass G10D - STRINGED MUSICAL INSTRUMENTS; WIND MUSICAL INSTRUMENTS; ACCORDIONS OR CONCERTINAS; PERCUSSION MUSICAL INSTRUMENTS; AEOLIAN HARPS; SINGING-FLAME MUSICAL INSTRUMENTS; MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR - covers 828 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 G10D is shaped by 20 distinct companies actively filing in this space. Yamaha Corporation leads with 79 patents, followed by Roland Corporation at 37 grants and Drum Workshop, Inc. at 31.

Filing activity in G10D is down 14% 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 G10D innovation accelerating?

US utility-patent grants per year in G10D, 2015–2025 - recent five years are down 14% versus 2015–2019.

406080100 20152016201720182019202020212022202320242025 43

Who leads G10D?

The 12 most active assignees in STRINGED MUSICAL INSTRUMENTS; WIND MUSICAL INSTRUMENTS; ACCORDIONS OR CONCERTINAS; PERCUSSION MUSICAL INSTRUMENTS; AEOLIAN HARPS; SINGING-FLAME MUSICAL INSTRUMENTS; MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR - wider bars mean more grants

patents

What this shows Yamaha is the most active filer in G10D, holding 79 of the 828 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 G10D
Rank Company Patents in G10D
#1 Yamaha Corporation 79
#2 Roland Corporation 37
#3 Drum Workshop, Inc. 31
#4 Hoshino Gakki Co., Ltd. 20
#5 Ciari Guitars, Inc. 19
#6 Randall May International Incorporated 17
#7 D'addario & Company, Inc. 15
#8 Pearl Musical Instrument Company 14
#9 Fender Musical Instruments Corporation 9
#10 Taylor-listug, Inc 9
#11 Playcore Wisconsin, Inc. 8
#12 Jim Melhart Piano And Organ Company 8
#13 MCP IP, Llc 7
#14 Inmusic Brands, Inc. 7
#15 Music Nomad, Llc 7
#16 K.h.s. Musical Instrument Co., Ltd. 7
#17 Reliance International Corp. 7
#18 REMO, Inc. 7
#19 Advanced Plating, Inc. 7
#20 Rovner Products Incorporated 6

About This Class

CPC subclass G10D belongs to class G10.

828 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 G10D 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 G10D assignees by class footprint. Bubble size = patents in G10D. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Top 14 G10D assignees by class footprint. Bubble size = patents in G10D. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 510152025 020406080100 Patents in G10D Avg claims / patent (company-wide) YamahaRolandDrum WorkshopHoshino GakkiCiari GuitarsRandall May Internati…D'addario &Pearl Musical Instrum…Fender Musical Instru…Taylor-listugPlaycore WisconsinJim Melhart Piano and…Mcp Ipinmusic Brands
Top 14 G10D assignees by class footprint. Bubble size = patents in G10D. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class G10D?
CPC subclass G10D covers STRINGED MUSICAL INSTRUMENTS; WIND MUSICAL INSTRUMENTS; ACCORDIONS OR CONCERTINAS; PERCUSSION MUSICAL INSTRUMENTS; AEOLIAN HARPS; SINGING-FLAME MUSICAL INSTRUMENTS; MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR. It belongs to CPC class G10 (MUSICAL INSTRUMENTS; ACOUSTICS), with 828 US utility patents granted since 2015.
How many patents have been filed in G10D?
828 US utility patents were granted in CPC subclass G10D between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in G10D?
Yamaha Corporation leads G10D with 79 patents, making it the most active assignee in this technology area.
How is patent data for G10D 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 G10D 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.