Where does West Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), West Corporation ranks #1,090 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does West Corporation hold?

West Corporation holds 391 US utility patents granted between 2015 and 2023, spanning 21 technology areas.

What is West Corporation's Innovation Score?

West Corporation has an Innovation Score of 48.1 out of 100 (top 17% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does West Corporation focus on?

West Corporation's top technology area is H04M (Telephonic Communication) with 247 patents, ranking #26 of 2,488 assignees active in that subclass. Grants appear in 21 CPC subclasses total.

Is West Corporation's patent grant rate increasing or decreasing?

West Corporation's recent grant velocity is -79% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

What does claim depth mean for West Corporation's patents?

West Corporation's patents average 18.3 claims each. This is an aggregate descriptive count from the grant record; it does not establish claim scope, legal strength, enforceability, or design-around risk.

How is the West Corporation patent data sourced?

All patent data comes from USPTO PatentsView, a public research dataset maintained by the United States Patent and Trademark Office covering US granted utility patents from 2015 to 2025.

USPTO 2015–2025 USPTO PatentsView US Corporation

West Corporation

USPTO PatentsView assignee record - 391 granted patents across 21 technology areas, recorded in grant years 2015–2023. Grant-trend analysis is cross-referenced to USPTO Patent Public Search; it does not measure application filings, current R&D, or legal strength. Primary class: H04M (Telephonic Communication).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, West ranks #1,090 of 49,997 tracked US assignees by granted-patent volume, with 391 patents across 21 technology areas.

#1,090
of 49,997 US assignees by volume: Top 17%
by Innovation Score (48.1/100): 18.3
avg claims per patent: -79%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R1090 · US Corporation #1,090 · 391 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-USCORP · VEL-DROP · BOOK-FULL

GRANTS-MID 391 grants
TOP-DECILE #1,090/49,997
PHOTO-FINISH Oxford University…
CPC-FOCUS H04M · 21 areas
INNOV-PAR 48.1/100
CLAIMS-RICH 18.3 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -79% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Oxford University Innovation Limited (±0 grants)

Instrument codes from this assignee’s USPTO PatentsView grant sheet: volume band, corpus rank, photo-finish peer, lead CPC, Innovation Score, claim depth, assignee type, velocity, and book completeness. Not a USPTO rating of patent strength.

How West’s 48.1 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Volume 20.6 pts (43%) Velocity 0.3 pts (1%) Breadth 16.2 pts (34%) Claim depth 11.0 pts (23%)

Qualcomm Incorporated · highest

85
Aktiebolaget… · near

48
Expel · near

48
Sumitomo Electric… · near

48
West · this assignee

48
Hino Motors · near

48
3D Lighting… · lowest

7

What this shows West's Innovation Score is 48.1/100 (top 17% of the PatentsView-derived corpus). The chart places that score against the nearest Innovation Score peers plus corpus poles, not a reprint of the volume ranking.

Does more volume mean deeper claims for West?

Each dot is one of West’s 8 nearest volume peers (same corpus rank neighbourhood as the chart above), placed by total granted patents (horizontal) against average claims per patent (vertical). West’s own 18.3 claims/patent is ABOVE the 16.5 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

West vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where West's grants concentrate

West Corporation is a focused PatentsView assignee: 21 CPC subclasses with 63.2% of grants classified under H04M (Telephonic Communication). Peak complete grant year is 2017 (83 grants) versus a trough of 1 in 2023. By volume, West sits between Fujitsu Component Limited and Gen-probe Incorporated.

West's three-year grant acceleration

From 2019–2021 to 2022–2024, West Corporation moved from 123 to 6 grants (0.05x the prior three-year total, a multiple, not a CAGR). Among 3,296 tracked assignees with ≥100 grants and ≥20 prior-period grants, that multiple ranks #3,230. See the growth leaderboard.

Fujitsu Component

392
Stats Chippac Pte

392
Oxford University…

391
Shenzhen Mindray…

391
West ◀

391
Ademco

390
Alliance for Sust…

390
Allison Transmiss…

390
Gen-probe Incorpo…

390

What this shows West holds 391 patents at rank #1,090, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near West

By rank, the assignees closest to #1,090 in granted patent volume.

Leaders in H04M (Telephonic Communication)

Other assignees with the most granted patents in West's primary technology class.

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for West, neither rank-band nor same-CPC leaders (those blocks stay above). In H04M (Telephonic Communication), West ranks #26 of 2,488 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (48 here).

Sumitomo Electric Printed Circuits, Inc. 48 Expel, Inc. 48 Hino Motors, Ltd. 48 Aktiebolaget Electrolux 48

Similar claim depth

Nearest assignees by average claims per patent (18.3 here).

Meta Platforms Technologies, LLC 18.3 avg Cornell Research Foundation, Inc. 18.3 avg Gogo LLC 18.3 avg Kunlunxin Technology (BEIJING) Company Limited 18.3 avg

West's Innovation Score vs. every tracked assignee

Composite of portfolio volume, grant velocity, technology breadth, and claim depth (0–100)

48 Top 17% higher than 83% of 49,997 US assignees

Each bar is a band; taller bars hold more US assignees. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source USPTO PatentsView, PlainPatent Innovation Score · 2015–2025

USPTO utility patent grants by year · 2015–2023

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

West Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	71	18.2%
2016	66	16.9%
2017	83	21.2%
2018	42	10.7%
2019	61	15.6%
2020	48	12.3%
2021	14	3.6%
2022	5	1.3%
2023	1	0.3%

Which technologies does West Corporation patent most?

H04M - Telephonic Communication 247

H04L - Transmission OF Digital Information, e.g. Telegraphic Communication 188

H04W - Wireless Communication Networks 146

G06F - Electric Digital Data Processing 109

G06Q - Information AND Communication Technology [ICT] Specially Adapted FOR Administrative, Commercial, Financial, Managerial OR Supervisory PURPOSES; Systems OR Methods Specially Adapted FOR Administrative, Commercial, Financial, Managerial OR Supervisory Purposes, NOT Otherwise Provided FOR 99

G10L - Speech Analysis Techniques OR Speech SYNTHESIS; Speech RECOGNITION; Speech OR Voice Processing TECHNIQUES; Speech OR Audio Coding OR Decoding 59

H04N - Pictorial Communication, e.g. Television 18

G16H - Healthcare Informatics, i.e. Information AND Communication Technology [ICT] Specially Adapted FOR THE Handling OR Processing OF Medical OR Healthcare Data 15

H04Q - Selecting 12

G08B - Signalling OR Calling SYSTEMS; Order TELEGRAPHS; Alarm Systems 6

G08C - Transmission Systems FOR Measured Values, Control OR Similar Signals 3

Y04S - Systems Integrating Technologies Related TO Power Network Operation, Communication OR Information Technologies FOR Improving THE Electrical Power Generation, Transmission, Distribution, Management OR Usage, i.e. Smart Grids 3

G01S - Radio DIRECTION-FINDING; Radio NAVIGATION; Determining Distance OR Velocity BY USE OF Radio WAVES; Locating OR Presence-detecting BY USE OF THE Reflection OR Reradiation OF Radio WAVES; Analogous Arrangements Using Other Waves 2

G09B - Educational OR Demonstration APPLIANCES; Appliances FOR Teaching, OR Communicating With, THE Blind, Deaf OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; Diagrams 2

G05D - Systems FOR Controlling OR Regulating Non-electric Variables 2

Top 15 of 21 technology areas

More on this record

Data Source

USPTO PatentsView, US granted patents 2015–2025

View all rankings → How is Innovation Score calculated?

What to do with this data

West Corporation's patent record in context - here's where to go next.

West Corporation's lead technology class is H04M (Telephonic Communication), 63.2% of its portfolio - see every assignee active in that class. Explore H04M
Ranked #1,090 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare West Corporation against Fujitsu Component Limited, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 48.1/100 blends volume, velocity, technology breadth, and claim depth. How it's calculated

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

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

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the USPTO PatentsView database. Consult a qualified professional before making decisions based on this data.

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

Data sources used on this page

USPTO PatentsView - the disambiguated bulk patent-grant, assignee, and CPC data this page's figures are derived from. patentsview.org
Cooperative Patent Classification (CPC) - the joint USPTO/EPO classification scheme used to group patents by technology area. cooperativepatentclassification.org
USPTO Patent Public Search - the official interface to verify the status of any individual patent. ppubs.uspto.gov

Compiled by PlainPatent , US Patent Intelligence Editorial Process · May 15, 2026

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. Data current as of May 2026.