USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Sumitomo Forestry Co., Ltd.

USPTO PatentsView assignee record - 8 granted patents across 11 technology areas, active 2015–2024. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: E04B (GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

6.4

Avg claims per patent

-86%

5-year filing velocity

The verdict

Sumitomo holds 8 US patents across 11 technology areas, rank #33,472 of 50,000 tracked assignees.

#33,472
of 50,000 US assignees by volume: Top 80%
by Innovation Score (26.5/100): 6.4
avg claims per patent: -86%
filing velocity, last 5 yrs

Portfolio overview

Sumitomo Forestry Co., Ltd. has been granted 8 US utility patents between 2015 and 2024, placing Sumitomo Forestry Co., Ltd. at rank #33,472 across all assignees tracked by PlainPatent. This portfolio spans 11 distinct Cooperative Patent Classification (CPC) subclasses, averaging 6.4 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, Sumitomo Forestry Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Sumitomo sits between Suburban Manufacturing, Llc (8 patents, rank #33,468) and Sunflower Labs Inc. (8 patents, rank #33,476) - the closest US assignees by grant volume. The composite Innovation Score of 26.5/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 1 grants, compared with 7 in the 2015–2019 window, a -86% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. Sumitomo Forestry Co., Ltd.'s 6.4 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while concentration in 11 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Sumitomo Forestry Co., Ltd. against peers pursuing similar technology classes.

Suburban Manufact…

8
Sud Scrub

8
Suitable

8
Sulfateq B V

8
Summers Manufactu…

8
Sun Scientific

8
Sunflare

8
Sunflower Labs

8
Sumitomo Forestry ◀

8

What this shows Sumitomo holds 8 patents at rank #33,472, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Sumitomo

By rank, the assignees closest to #33,472 in granted patent volume.

Leaders in E04B (General Building Constructions)

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

Sumitomo's Innovation Score vs. every tracked assignee

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

26 Top 80% higher than 20% 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 · 2015–2024

Grants by year

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

View data table

Sumitomo Forestry Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	12.5%
2016	2	25.0%
2017	2	25.0%
2019	2	25.0%
2024	1	12.5%

Which technologies does Sumitomo Forestry Co., Ltd. patent most?

E04B - GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS 4

E04C - STRUCTURAL ELEMENTS; BUILDING MATERIALS 2

E04H - BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL 2

F16B - DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING 2

B23K - SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM 1

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 1

C12P - FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE 1

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 1

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 1

C08J - WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H 1

C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS 1

Top 11 of 11 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Simple

Velocity Declining

Where it ranks

Overall rank by patents

#33,472

Across all tracked assignees

Innovation Score

26.5 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does Sumitomo Forestry Co., Ltd. hold?

Sumitomo Forestry Co., Ltd. holds 8 US granted patents filed between 2015 and 2024, spanning 11 technology areas.

What is Sumitomo Forestry Co., Ltd.'s Innovation Score?

Sumitomo Forestry Co., Ltd. has an Innovation Score of 26.5 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Sumitomo Forestry Co., Ltd. focus on?

Sumitomo Forestry Co., Ltd.'s top technology area is E04B (GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS) with 4 patents. The company has filed patents in 11 CPC subclasses total.

Is Sumitomo Forestry Co., Ltd.'s patent filing rate increasing or decreasing?

Sumitomo Forestry Co., Ltd.'s recent filing velocity is -86% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

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

Sumitomo Forestry Co., Ltd.'s patents average 6.4 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Sumitomo Forestry 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.

How to use this portfolio

Sumitomo's 8 grants land it in the top 80% 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 - Sumitomo ranks #33,472 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 Editorial

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 byPlainPatent Editorial, US Patent Intelligence Editorial Team · 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.