Where does Exfo OY rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Exfo OY ranks #28,722 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 Exfo OY hold?

Exfo OY holds 9 US utility patents granted between 2015 and 2025, spanning 8 technology areas.

What is Exfo OY's Innovation Score?

Exfo OY has an Innovation Score of 30.0 out of 100 (33rd percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Exfo OY focus on?

Exfo OY's top technology area is H04W (Wireless Communication Networks) with 7 patents, ranking #1,749 of 5,904 assignees active in that subclass. Grants appear in 8 CPC subclasses total.

Is Exfo OY's patent grant rate increasing or decreasing?

Exfo OY's recent grant velocity is +200% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Exfo OY's patents?

Exfo OY's patents average 14.6 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 Exfo OY 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

Exfo OY

USPTO PatentsView assignee record - 9 granted patents across 8 technology areas, recorded in grant years 2015–2025. 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: H04W (Wireless Communication Networks).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Exfo ranks #28,722 of 49,997 tracked US assignees by granted-patent volume, with 9 patents across 8 technology areas.

#28,722
of 49,997 US assignees by volume: 33rd percentile
by Innovation Score (30.0/100): 14.6
avg claims per patent: +200%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R28722 · Foreign Corporation #28,722 · 9 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-RICH · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 9 grants
MID-PACK #28,722/49,997
PHOTO-FINISH Euro Heat Pipes
CPC-NARROW H04W · 8 areas
INNOV-THIN 30.0/100
CLAIMS-RICH 14.6 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +200% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Euro Heat Pipes (±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 Exfo’s 30.0 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 8.0 pts (27%) Velocity 3.3 pts (11%) Breadth 10.0 pts (33%) Claim depth 8.7 pts (29%)

Qualcomm Incorporated · highest

85
Exfo OY · this assignee

30
3D Lighting… · lowest

7

What this shows Exfo's Innovation Score is 30.0/100 (33rd percentile 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 Exfo?

Each dot is one of Exfo’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). Exfo’s own 14.6 claims/patent is at or below the 14.7 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Exfo's grants concentrate

Exfo OY is a focused PatentsView assignee: 8 CPC subclasses with 77.8% of grants classified under H04W (Wireless Communication Networks). Peak complete grant year is 2020 (3 grants) versus a trough of 1 in 2015. By volume, Exfo sits between Euro Heat Pipes and Exterran Water Solutions ULC.

Exfo's three-year grant acceleration

Exfo OY shows 2 grants in 2022–2024 against only 4 in 2019–2021. That prior window is too thin for a growth multiple (rename and spin-out assignees look artificially high when the baseline is near zero), so PlainPatent withholds a ranked acceleration claim here.

Euro Heat Pipes

9
Evergrande NEW En…

9
Excalibur Crossbow

9
Excelio Technolog…

9
Exicure

9
Exilant Private

9
Expliseat

9
Exterran Water So…

9
Exfo OY ◀

9

What this shows Exfo holds 9 patents at rank #28,662, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Exfo

By rank, the assignees closest to #28,662 in granted patent volume.

Leaders in H04W (Wireless Communication Networks)

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

Exfo's Innovation Score vs. every tracked assignee

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

30 33rd percentile higher than 33% 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 · 2015–2025

Grants by year

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

View data table

Exfo OY patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	11.1%
2016	1	11.1%
2020	3	33.3%
2021	1	11.1%
2022	2	22.2%
2025partial year	1	11.1%

Which technologies does Exfo OY patent most?

H04W - Wireless Communication Networks 7

H04L - Transmission OF Digital Information, e.g. Telegraphic Communication 5

H04J - Multiplex Communication 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

G01C - Measuring Distances, Levels OR BEARINGS; SURVEYING; NAVIGATION; Gyroscopic INSTRUMENTS; Photogrammetry OR Videogrammetry 1

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 1

H04M - Telephonic Communication 1

Top 8 of 8 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

Exfo OY's patent record in context - here's where to go next.

Exfo OY's lead technology class is H04W (Wireless Communication Networks), 77.8% of its portfolio - see every assignee active in that class. Explore H04W
Ranked #28,722 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Exfo OY against Euro Heat Pipes, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 30.0/100 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.