USPTO 2015–2025 USPTO PatentsView US Corporation

WEST Corporation

USPTO PatentsView assignee record - 391 granted patents across 21 technology areas, active 2015–2023. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: H04M (TELEPHONIC COMMUNICATION).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

391

Total patents granted

CPC technology areas

18.3

Avg claims per patent

-79%

5-year filing velocity

The verdict

WEST holds 391 US patents across 21 technology areas, rank #1,090 of 50,000 tracked assignees.

#1,090
of 50,000 US assignees by volume: Top 17%
by Innovation Score (48.1/100): 18.3
avg claims per patent: -79%
filing velocity, last 5 yrs

Portfolio overview

WEST Corporation has been granted 391 US utility patents between 2015 and 2023, placing WEST Corporation at rank #1,090 across all assignees tracked by PlainPatent. This portfolio spans 21 distinct Cooperative Patent Classification (CPC) subclasses, averaging 18.3 claims per patent with primary concentration in H04M (TELEPHONIC COMMUNICATION). As a US Corporation, WEST Corporation is one of the more focused assignees in the PatentsView dataset. By volume, WEST sits between Fujitsu Component Limited (392 patents, rank #1,086) and Gen-probe Incorporated (390 patents, rank #1,094) - the closest US assignees by grant volume. The composite Innovation Score of 48.1/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 68 grants, compared with 323 in the 2015–2019 window, a -79% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. The US Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. WEST Corporation's 18.3 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a multi-domain presence across 21 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark WEST Corporation against peers pursuing similar technology classes.

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.

WEST's Innovation Score vs. every tracked assignee

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

48 Top 17% higher than 83% of 50,000 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

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Multi-domain

Claim Depth Standard

Velocity Declining

Where it ranks

Overall rank by patents

#1,090

Across all tracked assignees

Innovation Score

48.1 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does WEST Corporation hold?

WEST Corporation holds 391 US granted patents filed 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. This composite metric weighs portfolio volume (40%), filing 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. The company has filed patents in 21 CPC subclasses total.

Is WEST Corporation's patent filing rate increasing or decreasing?

WEST Corporation's recent filing velocity is -79% compared to the prior five-year period. Filing 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 falls within the standard range, providing solid legal coverage.

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.

How to use this portfolio

WEST's 391 grants land it in the top 17% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - WEST ranks #1,090 of 50,000. Top 50 holders
Most of this portfolio concentrates in H04M - see who else leads that technology area. H04M leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

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

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 byPlainPatent Editorial, US Patent Intelligence Editorial Team · 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.