Where does Japan Polyethylene Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Japan Polyethylene Corporation ranks #7,866 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 Japan Polyethylene Corporation hold?

Japan Polyethylene Corporation holds 41 US utility patents granted between 2015 and 2025, spanning 19 technology areas.

What is Japan Polyethylene Corporation's Innovation Score?

Japan Polyethylene Corporation has an Innovation Score of 40.8 out of 100 (top 35% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Japan Polyethylene Corporation's patent grant rate increasing or decreasing?

Japan Polyethylene Corporation'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 Japan Polyethylene Corporation's patents?

Japan Polyethylene Corporation's patents average 12.1 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 Japan Polyethylene Corporation 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

Japan Polyethylene Corporation

Q: What technology areas does Japan Polyethylene Corporation focus on?

Japan Polyethylene Corporation's top technology area is C08F (Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds) with 36 patents, ranking #87 of 1,231 assignees active in that subclass. Grants appear in 19 CPC subclasses total.

USPTO PatentsView assignee record - 41 granted patents across 19 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: C08F (Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Japan ranks #7,866 of 49,997 tracked US assignees by granted-patent volume, with 41 patents across 19 technology areas.

#7,866
of 49,997 US assignees by volume: Top 35%
by Innovation Score (40.8/100): 12.1
avg claims per patent: +0%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R7866 · Foreign Corporation #7,866 · 41 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-FRNCORP · VEL-FLAT · BOOK-FULL

GRANTS-SMALL 41 grants
UPPER-Q #7,866/49,997
PHOTO-FINISH Imerys USA
CPC-FOCUS C08F · 19 areas
INNOV-PAR 40.8/100
CLAIMS-RICH 12.1 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-FLAT +0% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Imerys USA, Inc. (±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 Japan’s 40.8 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 12.9 pts (32%) Velocity 5.2 pts (13%) Breadth 15.4 pts (38%) Claim depth 7.3 pts (18%)

Qualcomm Incorporated · highest

85
BluWave · near

41
Dispensing B V · near

41
Japan Polyethylene · this assignee

41
Otoy · near

41
Visa Europe · near

41
3D Lighting… · lowest

7

What this shows Japan's Innovation Score is 40.8/100 (top 35% 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 Japan?

Each dot is one of Japan’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). Japan’s own 12.1 claims/patent is ABOVE the 11.2 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Japan's grants concentrate

Japan Polyethylene Corporation is a focused PatentsView assignee: 19 CPC subclasses with 87.8% of grants classified under C08F (Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds). Peak complete grant year is 2018 (10 grants) versus a trough of 1 in 2015. By volume, Japan sits between Iwis Motorsysteme GMBH & Co. KG and Kabushiki Kaisha TOP.

Japan's three-year grant acceleration

Japan Polyethylene Corporation shows 11 grants in 2022–2024 against only 14 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.

Iwis Motorsysteme…

41
Imerys USA

41
Impossible Foods

41
Inventec Applianc…

41
JDS Uniphase

41
JX Metals

41
Kawai Gakki Seisa…

41
TOP

41
Japan Polyethylene ◀

41

What this shows Japan holds 41 patents at rank #7,866, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Japan

By rank, the assignees closest to #7,866 in granted patent volume.

Leaders in C08F (Macromolecular Compounds Obtained BY Reactions Only Invol…)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Japan, neither rank-band nor same-CPC leaders (those blocks stay above). In C08F (Macromolecular Compounds Obtained BY Reactions Only Invol…), Japan ranks #87 of 1,231 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (41 here).

Otoy Inc. 41 Dispensing Technologies B.V. 41 BluWave Inc. 41 Visa Europe Limited 41

Japan's Innovation Score vs. every tracked assignee

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

41 Top 35% higher than 65% 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

Japan Polyethylene Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	2.4%
2016	2	4.9%
2017	2	4.9%
2018	10	24.4%
2019	5	12.2%
2020	4	9.8%
2021	5	12.2%
2022	3	7.3%
2023	5	12.2%
2024	3	7.3%
2025partial year	1	2.4%

Which technologies does Japan Polyethylene Corporation patent most?

C08F - Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds 36

C08L - Compositions OF Macromolecular Compounds 18

C07F - Acyclic, Carbocyclic OR Heterocyclic Compounds Containing Elements Other Than Carbon, Hydrogen, Halogen, Oxygen, Nitrogen, Sulfur, Selenium OR Tellurium 11

C08J - WORKING-UP; General Processes OF COMPOUNDING; After-treatment NOT Covered BY Subclasses C08b, C08c, C08f, C08g or C08h 9

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 6

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 5

Y10T - Technical Subjects Covered BY Former US Classification 4

B29C - Shaping OR Joining OF PLASTICS; Shaping OF Material IN A Plastic State, NOT Otherwise Provided FOR; After-treatment OF THE Shaped Products, e.g. Repairing 4

B29K - Indexing Scheme Associated With Subclasses B29b, B29c OR B29d, Relating TO Moulding Materials OR TO Materials FOR ; Moulds, ; Reinforcements, Fillers OR Preformed Parts, e.g. Inserts 4

C09J - ADHESIVES; Non-mechanical Aspects OF Adhesive Processes IN GENERAL; Adhesive Processes NOT Provided FOR ELSEWHERE; USE OF Materials AS Adhesives 4

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 2

H10F - Inorganic Semiconductor Devices Sensitive TO Infrared Radiation, Light, Electromagnetic Radiation OF Shorter Wavelength OR Corpuscular Radiation 2

C08G - Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds 1

C09D - Coating Compositions, e.g. Paints, Varnishes OR LACQUERS; Filling PASTES; Chemical Paint OR INK REMOVERS; INKS; Correcting FLUIDS; WOODSTAINS; Pastes OR Solids FOR Colouring OR PRINTING; USE OF Materials Therefor 1

F16L - PIPES; Joints OR Fittings FOR PIPES; Supports FOR Pipes, Cables OR Protective TUBING; Means FOR Thermal Insulation IN General 1

Top 15 of 19 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

Japan Polyethylene Corporation's patent record in context - here's where to go next.

Japan Polyethylene Corporation's lead technology class is C08F (Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds), 87.8% of its portfolio - see every assignee active in that class. Explore C08F
Ranked #7,866 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Japan Polyethylene Corporation against Iwis Motorsysteme GMBH & Co. KG, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 40.8/100 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.