PlainPatent

CPC technology class · G10

G10L - Speech Analysis Techniques OR Speech Synthesis

Speech analysis techniques or speech synthesis; speech recognition; speech or voice processing techniques; speech or audio coding or decoding. 35,471 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

35,471
US patents granted
G10
Parent CPC class
20
Active assignees
+75%
5-yr velocity

The verdict

Speech Analysis Techniques OR Speech Synthesis ranks #49 of 670 CPC technology areas - 35,471 US patents granted since 2015, with filing up 75% over five years.

#49
of 670 CPC technology areas
35,471
US patents granted, 2015–2025
Google
leading assignee (2,230)
+75%
filing velocity, last 5 yrs
Top assignee: Google Llc (2,230 patents)

CPC subclass G10L - SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING - covers 35,471 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 G10L is shaped by 20 distinct companies actively filing in this space. Google Llc leads with 2,230 patents, followed by Amazon Technologies, Inc. at 1,661 grants and International Business Machines Corporation at 1,520.

Filing activity in G10L is up 75% over the past five years versus 2015-2019, a sharp acceleration suggesting an emerging or fast-moving technology area. All counts come directly from USPTO PatentsView and reflect US granted utility patents only.

Is G10L innovation accelerating?

US utility-patent grants per year in G10L, 2015–2025 - recent five years are up 75% versus 2015–2019.

1,0002,0003,0004,0005,000 20152016201720182019202020212022202320242025 2,797

Who leads G10L?

The 12 most active assignees in SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING - wider bars mean more grants

patents

What this shows Google is the most active filer in G10L, holding 2,230 of the 35,471 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 G10L
Rank Company Patents in G10L
#1 Google Llc 2,230
#2 Amazon Technologies, Inc. 1,661
#3 International Business Machines Corporation 1,520
#4 Microsoft Technology Licensing, Llc 897
#5 Fraunhofer-gesellschaft Zur Förderung Der Angewandten Forschung E.v. 760
#6 Apple Inc. 705
#7 Dolby Laboratories Licensing Corporation 680
#8 Dolby International AB 641
#9 SONY Group Corporation 585
#10 Nuance Communications, Inc. 529
#11 Huawei Technologies Co., Ltd. 468
#12 Qualcomm Incorporated 444
#13 AT&T Intellectual Property I, L.p. 375
#14 Sonos, Inc. 271
#15 Nippon Telegraph AND Telephone Corporation 260
#16 Tencent Technology (shenzhen) Company Limited 254
#17 Telefonaktiebolaget LM Ericsson (publ) 242
#18 Nokia Technologies OY 242
#19 Rovi Guides, Inc. 240
#20 Korea Advanced Institute OF Science AND Technology 231

About This Class

CPC subclass G10L belongs to class G10.

35,471 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 G10L 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 G10L assignees by class footprint. Bubble size = patents in G10L. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Top 14 G10L assignees by class footprint. Bubble size = patents in G10L. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 1015202530 05001000150020002500 Patents in G10L Avg claims / patent (company-wide) GoogleAmazonInternational Busines…Microsoft Technology…Fraunhofer-gesellscha…AppleDolby Laboratories Li…Dolby International AbSony GroupNuance CommunicationsHuaweiQualcomm IncorporatedAt&T Intellectual Pro…Sonos
Top 14 G10L assignees by class footprint. Bubble size = patents in G10L. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class G10L?
CPC subclass G10L covers SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING. It belongs to CPC class G10 (MUSICAL INSTRUMENTS; ACOUSTICS), with 35,471 US utility patents granted since 2015.
How many patents have been filed in G10L?
35,471 US utility patents were granted in CPC subclass G10L between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in G10L?
Google Llc leads G10L with 2,230 patents, making it the most active assignee in this technology area.
How is patent data for G10L 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 G10L 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.