Where does Seiren Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Seiren Co., Ltd. ranks #6,275 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 Seiren Co., Ltd. hold?

Seiren Co., Ltd. holds 54 US utility patents granted between 2015 and 2025, spanning 53 technology areas.

What is Seiren Co., Ltd.'s Innovation Score?

Seiren Co., Ltd. has an Innovation Score of 50.9 out of 100 (top 12% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Seiren Co., Ltd. focus on?

Seiren Co., Ltd.'s top technology area is B32B (Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form) with 23 patents, ranking #176 of 3,088 assignees active in that subclass. Grants appear in 53 CPC subclasses total.

Is Seiren Co., Ltd.'s patent grant rate increasing or decreasing?

Seiren Co., Ltd.'s recent grant velocity is +112% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Seiren Co., Ltd.'s patents?

Seiren Co., Ltd.'s patents average 8.9 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 Seiren Co., Ltd. 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

Seiren Co., Ltd.

USPTO PatentsView assignee record - 54 granted patents across 53 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: B32B (Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Seiren ranks #6,275 of 49,997 tracked US assignees by granted-patent volume, with 54 patents across 53 technology areas.

#6,275
of 49,997 US assignees by volume: Top 12%
by Innovation Score (50.9/100): 8.9
avg claims per patent: +112%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R6275 · Foreign Corporation #6,275 · 54 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-WIDE · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-SMALL 54 grants
UPPER-Q #6,275/49,997
PHOTO-FINISH REE Automotive
CPC-WIDE B32B · 53 areas
INNOV-PAR 50.9/100
CLAIMS-PAR 8.9 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +112% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: REE Automotive 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 Seiren’s 50.9 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 13.8 pts (27%) Velocity 6.7 pts (13%) Breadth 25.0 pts (49%) Claim depth 5.3 pts (10%)

Qualcomm Incorporated · highest

85
Donnelly · near

51
Open Space Labs · near

51
Saudi Aramco · near

51
Schneider & KG · near

51
Seiren · this assignee

51
3D Lighting… · lowest

7

What this shows Seiren's Innovation Score is 50.9/100 (top 12% 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 Seiren?

Each dot is one of Seiren’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). Seiren’s own 8.9 claims/patent is at or below the 15.7 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

How Seiren's grant cadence moved

Between 2020–2024, Seiren Co., Ltd. received 36 grants versus 17 in 2015–2019 (+112% equal-window velocity, above median growth). Across complete PatentsView years, output peaked in 2022 at 11 grants and bottomed in 2016 at 2. Lead class B32B accounts for 42.6% of the portfolio across 53 subclasses. Volume neighbours: REE Automotive Ltd (#6,269) and Syngenta Limited (#6,277).

Seiren's three-year grant acceleration

From 2019–2021 to 2022–2024, Seiren Co., Ltd. moved from 21 to 21 grants (1.00x the prior three-year total, a multiple, not a CAGR). See the growth leaderboard.

REE Automotive

54
Research Cooperat…

54
Sandisk IL

54
Santoni S P A

54
Skybell IP

54
Smart ULC

54
Stamps COM

54
Syngenta

54
Seiren ◀

54

What this shows Seiren holds 54 patents at rank #6,273, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Seiren

By rank, the assignees closest to #6,273 in granted patent volume.

Leaders in B32B (Layered Products)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Seiren, neither rank-band nor same-CPC leaders (those blocks stay above). In B32B (Layered Products), Seiren ranks #176 of 3,088 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (51 here).

Saudi Aramco Technologies Company 51 Schneider GmbH & Co. KG 51 Open Space Labs, Inc. 51 Donnelly Corporation 51

Similar claim depth

Nearest assignees by average claims per patent (8.9 here).

Andis Company 8.9 avg Hardware Resources, Inc. 8.9 avg Unisantis Electronics Singapore PTE. Ltd. 8.9 avg Nabtesco Corporation 8.9 avg

Seiren's Innovation Score vs. every tracked assignee

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

51 Top 12% higher than 88% 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

Seiren Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	3	5.6%
2016	2	3.7%
2017	3	5.6%
2018	3	5.6%
2019	6	11.1%
2020	7	13.0%
2021	8	14.8%
2022	11	20.4%
2023	6	11.1%
2024	4	7.4%
2025partial year	1	1.9%

Which technologies does Seiren Co., Ltd. patent most?

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 23

D10B - Indexing Scheme Associated With Sublasses OF Section D, Relating TO Textiles 16

B60R - Vehicles, Vehicle Fittings, OR Vehicle Parts, NOT Otherwise Provided FOR 15

D03D - Woven FABRICS; Methods OF WEAVING; Looms 13

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 11

D06N - Wall, Floor, OR Like Covering Materials, e.g. Linoleum, Oilcloth, Artificial Leather, Roofing Felt, Consisting OF A Fibrous WEB Coated With A Layer OF Macromolecular MATERIAL; Flexible Sheet Material NOT Otherwise Provided FOR 11

B29L - Indexing Scheme Associated With Subclass B29c, Relating TO Particular Articles 8

B44C - Producing Decorative Effects ; MOSAICS; Tarsia Work ; Paperhanging 7

Y10T - Technical Subjects Covered BY Former US Classification 7

B60N - Seats Specially Adapted FOR VEHICLES; Vehicle Passenger Accommodation NOT Otherwise Provided FOR 6

D06M - Treatment, NOT Provided FOR Elsewhere IN Class D06, OF Fibres, Threads, Yarns, Fabrics, Feathers OR Fibrous Goods Made From Such Materials 6

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 6

D04B - Knitting 5

B05D - Processes FOR Applying Fluent Materials TO Surfaces, IN General 5

B44B - Machines, Apparatus OR Tools FOR Artistic Work, e.g. FOR Sculpturing, Guilloching, Carving, Branding, Inlaying 4

Top 15 of 53 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

Seiren Co., Ltd.'s patent record in context - here's where to go next.

Seiren Co., Ltd.'s lead technology class is B32B (Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form), 42.6% of its portfolio - see every assignee active in that class. Explore B32B
Ranked #6,275 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Seiren Co., Ltd. against REE Automotive Ltd, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 50.9/100 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.