Where does West Affum Holdings Corp. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), West Affum Holdings Corp. ranks #3,337 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 Affum Holdings Corp. hold?

West Affum Holdings Corp. holds 112 US utility patents granted between 2015 and 2022, spanning 17 technology areas.

What is West Affum Holdings Corp.'s Innovation Score?

West Affum Holdings Corp. has an Innovation Score of 45.5 out of 100 (top 23% 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 Affum Holdings Corp. focus on?

West Affum Holdings Corp.'s top technology area is A61N (ELECTROTHERAPY; MAGNETOTHERAPY; Radiation THERAPY; Ultrasound Therapy) with 100 patents, ranking #34 of 1,943 assignees active in that subclass. Grants appear in 17 CPC subclasses total.

Is West Affum Holdings Corp.'s patent grant rate increasing or decreasing?

West Affum Holdings Corp.'s recent grant velocity is +49% compared to the prior five-year period (grant years, not application filing dates). The company is maintaining or growing its granted-patent output.

What does claim depth mean for West Affum Holdings Corp.'s patents?

West Affum Holdings Corp.'s patents average 19.5 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 Affum Holdings Corp. 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 Foreign Corporation

West Affum Holdings Corp.

USPTO PatentsView assignee record - 112 granted patents across 17 technology areas, recorded in grant years 2015–2022. 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: A61N (ELECTROTHERAPY; MAGNETOTHERAPY; Radiation THERAPY; Ultrasound Therapy).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, West ranks #3,337 of 49,997 tracked US assignees by granted-patent volume, with 112 patents across 17 technology areas.

#3,337
of 49,997 US assignees by volume: Top 23%
by Innovation Score (45.5/100): 19.5
avg claims per patent: +49%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R3337 · Foreign Corporation #3,337 · 112 grants

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

GRANTS-MID 112 grants
TOP-DECILE #3,337/49,997
PHOTO-FINISH SanDisk 3D
CPC-FOCUS A61N · 17 areas
INNOV-PAR 45.5/100
CLAIMS-RICH 19.5 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-UP +49% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: SanDisk 3D LLC (±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 45.5 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 16.3 pts (36%) Velocity 2.8 pts (6%) Breadth 14.6 pts (32%) Claim depth 11.7 pts (26%)

Qualcomm Incorporated · highest

85
Kuka Roboter · near

45
Microtecnica S R L · near

45
The Radio Flyer · near

45
Trendsetter Vulcan… · near

45
West Affum Holdings · this assignee

45
3D Lighting… · lowest

7

What this shows West's Innovation Score is 45.5/100 (top 23% 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 19.5 claims/patent is ABOVE the 18.1 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 Affum Holdings Corp. is a focused PatentsView assignee: 17 CPC subclasses with 89.3% of grants classified under A61N (ELECTROTHERAPY; MAGNETOTHERAPY; Radiation THERAPY; Ultrasound Therapy). Peak complete grant year is 2021 (37 grants) versus a trough of 2 in 2015. By volume, West sits between SanDisk 3D LLC and Applied Optoelectronics, Inc..

West's three-year grant acceleration

From 2019–2021 to 2022–2024, West Affum Holdings Corp. moved from 54 to 23 grants (0.43x 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 #2,834. See the growth leaderboard.

Sandisk 3D

112
Tsmc China

112
The Travelers Ind…

112
Welltec A/S

112
Yealink (Xiamen)…

112
West Affum Holdin… ◀

112
Akoustis

111
Aktiebolaget Elec…

111
Applied Optoelect…

111

What this shows West holds 112 patents at rank #3,337, 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 #3,337 in granted patent volume.

Leaders in A61N (Electrotherapy)

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 A61N (Electrotherapy), West ranks #34 of 1,943 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (45 here).

The Radio Flyer Company 45 Microtecnica S.R.L. 45 Trendsetter Vulcan Offshore, Inc. 45 Kuka Roboter GmbH 45

Similar claim depth

Nearest assignees by average claims per patent (19.5 here).

Brien Holden Vision Institute Limited 19.5 avg M.S. Technologies, L.L.C. 19.5 avg Research Institute OF Petroleum Processing, Sinopec 19.5 avg Rain Bird Corporation 19.5 avg

West's Innovation Score vs. every tracked assignee

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

45 Top 23% higher than 77% 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 · 2015–2022

Grants by year

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

View data table

West Affum Holdings Corp. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	1.8%
2016	8	7.1%
2017	14	12.5%
2018	11	9.8%
2019	10	8.9%
2020	7	6.3%
2021	37	33.0%
2022	23	20.5%

Which technologies does West Affum Holdings Corp. patent most?

A61N - ELECTROTHERAPY; MAGNETOTHERAPY; Radiation THERAPY; Ultrasound Therapy 100

A61B - DIAGNOSIS; SURGERY; Identification 61

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

G06F - Electric Digital Data Processing 5

H04W - Wireless Communication Networks 5

G16Z - Information AND Communication Technology [ICT] Specially Adapted FOR Specific Application Fields, NOT Otherwise Provided FOR 4

H04L - Transmission OF Digital Information, e.g. Telegraphic Communication 3

G06T - Image Data Processing OR Generation, IN General 3

G08B - Signalling OR Calling SYSTEMS; Order TELEGRAPHS; Alarm Systems 3

G06K - Graphical Data Reading ; Presentation OF DATA; Record CARRIERS; Handling Record Carriers 2

H01R - Electrically-conductive CONNECTIONS; Structural Associations OF A Plurality OF Mutually-insulated Electrical Connecting ELEMENTS; Coupling DEVICES; Current Collectors 1

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 1

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 1

H04B - Transmission 1

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 1

Top 15 of 17 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 Affum Holdings Corp.'s patent record in context - here's where to go next.

West Affum Holdings Corp.'s lead technology class is A61N (ELECTROTHERAPY; MAGNETOTHERAPY; Radiation THERAPY; Ultrasound Therapy), 89.3% of its portfolio - see every assignee active in that class. Explore A61N
Ranked #3,337 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare West Affum Holdings Corp. against SanDisk 3D LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 45.5/100 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.