USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Sekisui House, Ltd.

USPTO PatentsView assignee record - 32 granted patents across 31 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: E04B (GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS).

Compiled by PlainPatent · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

8.9

Avg claims per patent

+950%

5-year grant velocity

The verdict

According to USPTO PatentsView, Sekisui ranks #9,868 of 50,000 tracked US assignees by granted-patent volume, with 32 patents across 31 technology areas.

#9,868
of 50,000 US assignees by volume: Top 5%
by Innovation Score (57.1/100): 8.9
avg claims per patent: +950%
grant velocity, last 5 yrs

Portfolio overview

Sekisui House, Ltd. has been granted 32 US utility patents between 2015 and 2025, placing Sekisui House, Ltd. at #9,868 of 50,000 across all assignees tracked by PlainPatent. This portfolio spans 31 distinct Cooperative Patent Classification (CPC) subclasses, averaging 8.9 claims per patent with primary concentration in E04B (GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS). As a Foreign Corporation, Sekisui House, Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Sekisui sits between Resmed R&D Germany Gmbh (32 patents, rank #9,860) and SMR Inventec, Llc (32 patents, rank #9,868) - the closest US assignees by grant volume. The composite Innovation Score of 57.1/100 blends portfolio volume, grant velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Grant cadence records the difference between two grant-year windows. Between 2020 and 2024 the company received 21 grants, compared with 2 in the 2015–2019 window, a +950% shift in five-year grant velocity. Both windows cover five complete grant years; the latest PatentsView year is a partial release and is excluded from this comparison, though it still appears in the yearly table and chart below. Grant timing can lag the related application by years, so this comparison does not establish current R&D spending, strategic intent, or a company’s application activity. The Foreign Corporation classification provides context for the assignee record, not a conclusion about its business strategy.

Claim depth and technology breadth describe this aggregate record. Sekisui House, Ltd.'s 8.9 average claims per patent is an average count, not a measure of claim scope, legal strength, enforceability, or design-around risk. The record spans 31 CPC subclasses. Combined with portfolio volume, these figures let readers compare the documented grant records of assignees in similar technology classes.

Resmed R&D Germany

32
Santoku

32
Sapien Semiconduc…

32
Schneider Electri…

32
Shanghai Autoflig…

32
Sinteff TTO AS

32
Smarter Microelec…

32
SMR Inventec

32
Sekisui House ◀

32

What this shows Sekisui holds 32 patents at rank #9,864, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Sekisui

By rank, the assignees closest to #9,864 in granted patent volume.

Leaders in E04B (General Building Constructions)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Sekisui, neither rank-band nor same-CPC leaders (those blocks stay above).

Similar innovation score

Nearest assignees by Innovation Score (57 here).

Pwc Product Sales Llc 57 MPI Corporation 57 Dynaenergetics Europe Gmbh 57 Japan Science And Technology Agency 57

Sekisui's Innovation Score vs. every tracked assignee

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

57 Top 5% higher than 95% of 50,000 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

Sekisui House, Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	6.3%
2021	1	3.1%
2022	7	21.9%
2023	4	12.5%
2024	9	28.1%
2025partial year	9	28.1%

Which technologies does Sekisui House, Ltd. patent most?

E04B - GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS 16

E04F - FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS 4

E04H - BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL 4

G06F - ELECTRIC DIGITAL DATA PROCESSING 3

G06Q - INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR 3

G08B - SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS 3

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 3

Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS 3

H02S - GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES 3

E04C - STRUCTURAL ELEMENTS; BUILDING MATERIALS 3

G09G - ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION 2

A61B - DIAGNOSIS; SURGERY; IDENTIFICATION 2

E02D - FOUNDATIONS; EXCAVATIONS; EMBANKMENTS ; UNDERGROUND OR UNDERWATER STRUCTURES 2

E04D - ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS 2

E06B - FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES 2

Top 15 of 31 technology areas

Grant record at a glance

Portfolio Volume 32 grants

CPC subclasses 31

Avg. claims / grant 8.9

Velocity +950%

Historical grant data only; it does not rate legal strength or current strategy.

Where it ranks

Overall rank by patents

#9,868

of 50,000 tracked assignees

Innovation Score

57.1 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

Where does Sekisui House, Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Sekisui House, Ltd. ranks #9,868 of 50,000 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does Sekisui House, Ltd. hold?

Sekisui House, Ltd. holds 32 US utility patents granted between 2015 and 2025, spanning 31 technology areas.

What is Sekisui House, Ltd.'s Innovation Score?

Sekisui House, Ltd. has an Innovation Score of 57.1 out of 100 (top 5% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Sekisui House, Ltd. focus on?

Sekisui House, Ltd.'s top technology area is E04B (GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS) with 16 patents. Grants appear in 31 CPC subclasses total.

Is Sekisui House, Ltd.'s patent grant rate increasing or decreasing?

Sekisui House, Ltd.'s recent grant velocity is +950% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Sekisui House, Ltd.'s patents?

Sekisui House, 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 Sekisui House, 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.

How to use this portfolio

Sekisui's 32 grants land it in the top 5% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - Sekisui ranks #9,868 of 50,000. Top 50 holders
Most of this portfolio concentrates in E04B - see who else leads that technology area. E04B leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

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.