Where does NPL Management Limited rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), NPL Management Limited ranks #21,539 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 NPL Management Limited hold?

NPL Management Limited holds 13 US utility patents granted between 2017 and 2025, spanning 27 technology areas.

What is NPL Management Limited's Innovation Score?

NPL Management Limited has an Innovation Score of 41.7 out of 100 (top 32% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does NPL Management Limited focus on?

NPL Management Limited's top technology area is G01R (Measuring Electric VARIABLES; Measuring Magnetic Variables) with 4 patents, ranking #1,049 of 3,424 assignees active in that subclass. Grants appear in 27 CPC subclasses total.

Is NPL Management Limited's patent grant rate increasing or decreasing?

NPL Management Limited's recent grant velocity is +0% 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 NPL Management Limited's patents?

NPL Management Limited's patents average 17.3 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 NPL Management Limited 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

NPL Management Limited

USPTO PatentsView assignee record - 13 granted patents across 27 technology areas, recorded in grant years 2017–2025. 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: G01R (Measuring Electric VARIABLES; Measuring Magnetic Variables).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, NPL ranks #21,539 of 49,997 tracked US assignees by granted-patent volume, with 13 patents across 27 technology areas.

#21,539
of 49,997 US assignees by volume: Top 32%
by Innovation Score (41.7/100): 17.3
avg claims per patent: +0%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R21539 · Foreign Corporation #21,539 · 13 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-FRNCORP · VEL-FLAT · BOOK-FULL

GRANTS-MICRO 13 grants
MID-PACK #21,539/49,997
PHOTO-FINISH Nanhu Laboratory
CPC-FOCUS G01R · 27 areas
INNOV-PAR 41.7/100
CLAIMS-RICH 17.3 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-FLAT +0% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Nanhu Laboratory (±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 NPL’s 41.7 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 9.1 pts (22%) Velocity 3.8 pts (9%) Breadth 18.4 pts (44%) Claim depth 10.4 pts (25%)

Qualcomm Incorporated · highest

85
NPL Management · this assignee

42
3D Lighting… · lowest

7

What this shows NPL's Innovation Score is 41.7/100 (top 32% 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 NPL?

Each dot is one of NPL’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). NPL’s own 17.3 claims/patent is ABOVE the 11.5 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where NPL's grants concentrate

NPL Management Limited is a focused PatentsView assignee: 27 CPC subclasses with 30.8% of grants classified under G01R (Measuring Electric VARIABLES; Measuring Magnetic Variables). Peak complete grant year is 2019 (5 grants) versus a trough of 1 in 2017. By volume, NPL sits between Norcom and NanoCav, LLC.

NPL's three-year grant acceleration

NPL Management Limited shows 4 grants in 2022–2024 against only 7 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.

Norcom

13
Norgine BV

13
Noroo BEE Chemical

13
Northwest Institu…

13
Nucap Industries

13
Nymox

13
Nanhu Laboratory

13
Nanocav

13
NPL Management ◀

13

What this shows NPL holds 13 patents at rank #21,513, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near NPL

By rank, the assignees closest to #21,513 in granted patent volume.

Leaders in G01R (Measuring Electric Variables)

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

NPL's Innovation Score vs. every tracked assignee

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

42 Top 32% higher than 68% 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 · 2017–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2017–2019 baseline. Full figures in the table below.

View data table

NPL Management Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	1	7.7%
2019	5	38.5%
2021	2	15.4%
2023	2	15.4%
2024	2	15.4%
2025partial year	1	7.7%

Which technologies does NPL Management Limited patent most?

G01R - Measuring Electric VARIABLES; Measuring Magnetic Variables 4

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 4

A61B - DIAGNOSIS; SURGERY; Identification 2

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

G02F - Optical Devices OR Arrangements FOR THE Control OF Light BY Modification OF THE Optical Properties OF THE Media OF THE Elements Involved THEREIN; Non-linear OPTICS; Frequency-changing OF LIGHT; Optical Logic ELEMENTS; Optical ANALOGUE/DIGITAL Converters 2

Y10T - Technical Subjects Covered BY Former US Classification 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

H01Q - Antennas, i.e. Radio Aerials 1

G06V - Image OR Video Recognition OR Understanding 1

G06F - Electric Digital Data Processing 1

H04N - Pictorial Communication, e.g. Television 1

G06T - Image Data Processing OR Generation, IN General 1

G16H - Healthcare Informatics, i.e. Information AND Communication Technology [ICT] Specially Adapted FOR THE Handling OR Processing OF Medical OR Healthcare Data 1

G02B - Optical Elements, Systems OR Apparatus 1

Top 15 of 27 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

NPL Management Limited's patent record in context - here's where to go next.

NPL Management Limited's lead technology class is G01R (Measuring Electric VARIABLES; Measuring Magnetic Variables), 30.8% of its portfolio - see every assignee active in that class. Explore G01R
Ranked #21,539 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare NPL Management Limited against Norcom, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 41.7/100 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.