Where does John Crane UK Limited rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), John Crane UK Limited ranks #12,502 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 John Crane UK Limited hold?

John Crane UK Limited holds 24 US utility patents granted between 2015 and 2025, spanning 15 technology areas.

What is John Crane UK Limited's Innovation Score?

John Crane UK Limited has an Innovation Score of 45.7 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 John Crane UK Limited focus on?

John Crane UK Limited's top technology area is F16J (Pistons ; CYLINDERS; Sealings) with 21 patents, ranking #35 of 753 assignees active in that subclass. Grants appear in 15 CPC subclasses total.

Is John Crane UK Limited's patent grant rate increasing or decreasing?

John Crane UK Limited's recent grant velocity is +375% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for John Crane UK Limited's patents?

John Crane UK Limited's patents average 16.7 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 John Crane UK 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

John Crane UK Limited

USPTO PatentsView assignee record - 24 granted patents across 15 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: F16J (Pistons ; CYLINDERS; Sealings).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, John ranks #12,502 of 49,997 tracked US assignees by granted-patent volume, with 24 patents across 15 technology areas.

#12,502
of 49,997 US assignees by volume: Top 23%
by Innovation Score (45.7/100): 16.7
avg claims per patent: +375%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R12502 · Foreign Corporation #12,502 · 24 grants

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

GRANTS-SMALL 24 grants
MID-PACK #12,502/49,997
PHOTO-FINISH Jasco
CPC-FOCUS F16J · 15 areas
INNOV-PAR 45.7/100
CLAIMS-RICH 16.7 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +375% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Jasco Corporation (±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 John’s 45.7 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 11.1 pts (24%) Velocity 10.8 pts (24%) Breadth 13.7 pts (30%) Claim depth 10.0 pts (22%)

Qualcomm Incorporated · highest

85
John Crane UK · this assignee

46
3D Lighting… · lowest

7

What this shows John's Innovation Score is 45.7/100 (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 John?

Each dot is one of John’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). John’s own 16.7 claims/patent is ABOVE the 11.8 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where John's grants concentrate

John Crane UK Limited is a focused PatentsView assignee: 15 CPC subclasses with 87.5% of grants classified under F16J (Pistons ; CYLINDERS; Sealings). Peak complete grant year is 2023 (5 grants) versus a trough of 1 in 2015. By volume, John sits between J.J. Keller & Associates, Inc. and Koei Tecmo Games Co., Ltd..

John's three-year grant acceleration

John Crane UK Limited shows 13 grants in 2022–2024 against only 8 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.

J J Keller & Asso…

24
Jasco

24
Jiangxi Lianchuang

24
Jiin Haur Industr…

24
Kikusui Seisakusho

24
KM Biologics

24
Kobelco Research…

24
Koei Tecmo Games

24
John Crane UK ◀

24

What this shows John holds 24 patents at rank #12,502, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near John

By rank, the assignees closest to #12,502 in granted patent volume.

Leaders in F16J (Pistons)

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

John's Innovation Score vs. every tracked assignee

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

46 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 · 2015–2025

Grants by year

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

View data table

John Crane UK Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	4.2%
2016	1	4.2%
2019	2	8.3%
2020	3	12.5%
2021	3	12.5%
2022	4	16.7%
2023	5	20.8%
2024	4	16.7%
2025partial year	1	4.2%

Which technologies does John Crane UK Limited patent most?

F16J - Pistons ; CYLINDERS; Sealings 21

G01M - Testing Static OR Dynamic Balance OF Machines OR STRUCTURES; Testing OF Structures OR Apparatus, NOT Otherwise Provided FOR 9

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 8

F04D - Non-positive-displacement Pumps 7

G07C - Time OR Attendance REGISTERS; Registering OR Indicating THE Working OF MACHINES; Generating Random NUMBERS; Voting OR Lottery APPARATUS; Arrangements, Systems OR Apparatus FOR Checking NOT Provided FOR Elsewhere 7

G01D - Measuring NOT Specially Adapted FOR A Specific VARIABLE; Arrangements FOR Measuring TWO OR More Variables NOT Covered IN A Single Other SUBCLASS; Tariff Metering APPARATUS; Measuring OR Testing NOT Otherwise Provided FOR 3

G01P - Measuring Linear OR Angular Speed, Acceleration, Deceleration, OR SHOCK; Indicating Presence, Absence, OR Direction, OF Movement 3

F01D - Non-positive Displacement Machines OR Engines, e.g. Steam Turbines 2

F05D - Indexing Scheme FOR Aspects Relating TO Non-positive-displacement Machines OR Engines, Gas-turbines OR Jet-propulsion Plants 2

F16D - Couplings FOR Transmitting ROTATION; CLUTCHES; Brakes 2

F16K - VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating 1

G06F - Electric Digital Data Processing 1

G01H - Measurement OF Mechanical Vibrations OR Ultrasonic, Sonic OR Infrasonic Waves 1

Y10T - Technical Subjects Covered BY Former US Classification 1

H02K - Dynamo-electric Machines 1

Top 15 of 15 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

John Crane UK Limited's patent record in context - here's where to go next.

John Crane UK Limited's lead technology class is F16J (Pistons ; CYLINDERS; Sealings), 87.5% of its portfolio - see every assignee active in that class. Explore F16J
Ranked #12,502 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare John Crane UK Limited against J.J. Keller & Associates, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 45.7/100 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.