Where does John Crane Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), John Crane Inc. ranks #19,960 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 Inc. hold?

John Crane Inc. holds 14 US utility patents granted between 2017 and 2024, spanning 12 technology areas.

What is John Crane Inc.'s Innovation Score?

John Crane Inc. has an Innovation Score of 42.4 out of 100 (top 31% 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 Inc. focus on?

John Crane Inc.'s top technology area is F16J (Pistons ; CYLINDERS; Sealings) with 12 patents, ranking #62 of 753 assignees active in that subclass. Grants appear in 12 CPC subclasses total.

Is John Crane Inc.'s patent grant rate increasing or decreasing?

John Crane Inc.'s recent grant velocity is +267% 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 Inc.'s patents?

John Crane Inc.'s patents average 19.1 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 Inc. 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 US Corporation

John Crane Inc.

USPTO PatentsView assignee record - 14 granted patents across 12 technology areas, recorded in grant years 2017–2024. 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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The verdict

According to USPTO PatentsView, John ranks #19,960 of 49,997 tracked US assignees by granted-patent volume, with 14 patents across 12 technology areas.

#19,960
of 49,997 US assignees by volume: Top 31%
by Innovation Score (42.4/100): 19.1
avg claims per patent: +267%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R19960 · US Corporation #19,960 · 14 grants

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

GRANTS-MICRO 14 grants
MID-PACK #19,960/49,997
PHOTO-FINISH Japan Capacitor…
CPC-FOCUS F16J · 12 areas
INNOV-PAR 42.4/100
CLAIMS-RICH 19.1 claims/avg
TYPE-USCORP US Corporation
VEL-SURGE +267% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Japan Capacitor Industrial Co., Ltd. (±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 42.4 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 9.4 pts (22%) Velocity 9.3 pts (22%) Breadth 12.2 pts (29%) Claim depth 11.4 pts (27%)

Qualcomm Incorporated · highest

85
John Crane · this assignee

42
3D Lighting… · lowest

7

What this shows John's Innovation Score is 42.4/100 (top 31% 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 19.1 claims/patent is ABOVE the 10.4 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 Inc. is a focused PatentsView assignee: 12 CPC subclasses with 85.7% of grants classified under F16J (Pistons ; CYLINDERS; Sealings). Peak complete grant year is 2020 (4 grants) versus a trough of 1 in 2019. By volume, John sits between Jiangsu Dongcheng Tools Technology Co., Ltd. and Johann Wolfgang Goethe-Universität Frankfurt am Main.

John's three-year grant acceleration

John Crane Inc. shows 7 grants in 2022–2024 against only 5 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.

Jiangsu Dongcheng…

14
Jiangsu Shemar El…

14
JM Energy

14
JMJ Holdings

14
Japan Capacitor I…

14
Japan Superconduc…

14
Jenoptik Automati…

14
Johann Wolfgang G…

14
John Crane ◀

14

What this shows John holds 14 patents at rank #19,953, 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 #19,953 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)

42 Top 31% higher than 69% 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 · 2017–2024

Grants by year

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

View data table

John Crane Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	2	14.3%
2019	1	7.1%
2020	4	28.6%
2022	1	7.1%
2023	4	28.6%
2024	2	14.3%

Which technologies does John Crane Inc. patent most?

F16J - Pistons ; CYLINDERS; Sealings 12

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

C04B - Lime, MAGNESIA; SLAG; CEMENTS; Compositions Thereof, e.g. Mortars, Concrete OR Like Building MATERIALS; Artificial Stone ; Ceramics ; REFRACTORIES; Treatment OF Natural Stone 1

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 1

C23C - Coating Metallic MATERIAL; Coating Material With Metallic MATERIAL; Surface Treatment OF Metallic Material BY Diffusion Into THE Surface, BY Chemical Conversion OR SUBSTITUTION; Coating BY Vacuum Evaporation, BY Sputtering, BY ION Implantation OR BY Chemical Vapour Deposition, IN General 1

C01B - Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c 1

C30B - Single-crystal Growth ; Unidirectional Solidification OF Eutectic Material OR Unidirectional Demixing OF Eutectoid MATERIAL; Refining BY Zone-melting OF Material ; Production OF A Homogeneous Polycrystalline Material With Defined Structure ; Single Crystals OR Homogeneous Polycrystalline Material WI 1

C01P - Indexing Scheme Relating TO Structural AND Physical Aspects OF Solid Inorganic Compounds 1

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 1

G01M - Testing Static OR Dynamic Balance OF Machines OR STRUCTURES; Testing OF Structures OR Apparatus, NOT Otherwise Provided FOR 1

F04D - Non-positive-displacement Pumps 1

Top 12 of 12 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 Inc.'s patent record in context - here's where to go next.

John Crane Inc.'s lead technology class is F16J (Pistons ; CYLINDERS; Sealings), 85.7% of its portfolio - see every assignee active in that class. Explore F16J
Ranked #19,960 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare John Crane Inc. against Jiangsu Dongcheng Tools Technology Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 42.4/100 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.