PlainPatent
USPTO 2015–2025 USPTO PatentsView Foreign Corporation

SUMITOMO BAKELITE CO., LTD.

USPTO PatentsView assignee record — 170 granted patents across 92 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: C08L (COMPOSITIONS OF MACROMOLECULAR COMPOUNDS).

Explore the portfolio See the ranking
170
Total patents granted
92
CPC technology areas
14.6
Avg claims per patent
-63%
5-year filing velocity

The verdict

SUMITOMO holds 170 US patents across 92 technology areas — rank #2,302 of 50,000 tracked assignees.

#2,302
of 50,000 US assignees by volume
Top 7%
by Innovation Score (55.7/100)
14.6
avg claims per patent
-63%
filing velocity, last 5 yrs

Portfolio overview

SUMITOMO BAKELITE CO., LTD. has been granted 170 US utility patents between 2015 and 2025, placing SUMITOMO BAKELITE CO., LTD. at rank #2,302 across all assignees tracked by PlainPatent. This portfolio spans 92 distinct Cooperative Patent Classification (CPC) subclasses, averaging 14.6 claims per patent with primary concentration in C08L (COMPOSITIONS OF MACROMOLECULAR COMPOUNDS). As a Foreign Corporation, SUMITOMO BAKELITE CO., LTD. is one of the broader-portfolio assignees in the PatentsView dataset. The composite Innovation Score of 55.7/100 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 46 grants, compared with 124 in the 2015–2019 window — a -63% 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 BAKELITE CO., LTD.'s 14.6 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a multi-domain presence across 92 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark SUMITOMO BAKELITE CO., LTD. against peers pursuing similar technology classes.

How does SUMITOMO compare?

Granted US patents 2015–2025 versus the largest corporate holders — this company marked ◀

patents

What this shows SUMITOMO holds 170 patents — placing it at rank #2,302 overall, well behind the volume leaders but ahead of the tens of thousands of smaller assignees in the dataset.

Source USPTO PatentsView — granted utility patents As of 2015–2025

SUMITOMO's Innovation Score vs. every tracked assignee

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

56 Top 7% higher than 93% of 50,000 US assignees

0–10: 687 US assignees (1%). Below this entry. 10–20: 2,527 US assignees (5%). Below this entry. 20–30: 13,162 US assignees (26%). Below this entry. 30–40: 15,294 US assignees (31%). Below this entry. 40–50: 11,491 US assignees (23%). Below this entry. 50–60: 5,058 US assignees (10%). This entry sits in this band. 60–70: 1,537 US assignees (3%). Above this entry. 70–80: 234 US assignees (0%). Above this entry. 80–90: 10 US assignees (0%). Above this entry. 90–100: 0 US assignees (0%). Above this entry. This assignee 0 100 every tracked assignee, bucketed by value

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

010203040 20152016201720182019202020212022202320242025 6
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
SUMITOMO BAKELITE CO., LTD. patent grants by year, 2015–2025
Year Patents Granted Share of Period
2015 32 18.8%
2016 28 16.5%
2017 21 12.4%
2018 21 12.4%
2019 22 12.9%
2020 6 3.5%
2021 10 5.9%
2022 9 5.3%
2023 7 4.1%
2024 8 4.7%
2025 6 3.5%

Which technologies does SUMITOMO BAKELITE CO., LTD. patent most?

Top 15 of 92 technology areas

Patent Moat Analysis

Portfolio Volume Moderate
Tech Breadth Multi-domain
Claim Depth Standard
Velocity Declining

Where it ranks

Overall rank by patents

#2,302

Across all tracked assignees

Innovation Score

55.7 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 BAKELITE CO., LTD. hold?
SUMITOMO BAKELITE CO., LTD. holds 170 US granted patents filed between 2015 and 2025, spanning 92 technology areas.
What is SUMITOMO BAKELITE CO., LTD.'s Innovation Score?
SUMITOMO BAKELITE CO., LTD. has an Innovation Score of 55.7 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 BAKELITE CO., LTD. focus on?
SUMITOMO BAKELITE CO., LTD.'s top technology area is C08L (COMPOSITIONS OF MACROMOLECULAR COMPOUNDS) with 41 patents. The company has filed patents in 92 CPC subclasses total.
Is SUMITOMO BAKELITE CO., LTD.'s patent filing rate increasing or decreasing?
SUMITOMO BAKELITE CO., LTD.'s recent filing velocity is -63% compared to the prior five-year period. Filing activity has slowed relative to earlier years.
What does claim depth mean for SUMITOMO BAKELITE CO., LTD.'s patents?
SUMITOMO BAKELITE CO., LTD.'s patents average 14.6 claims each. This falls within the standard range, providing solid legal coverage.
How is the SUMITOMO BAKELITE 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.

Learn More

How Innovation Score Works

Understand the four dimensions behind the composite score
How to Read Patent Data

Plain-English guide to CPC codes, claims, and metrics
Patent Moat Analysis

How companies use patents as competitive barriers

Explore the patent dataset

C08L technology

SUMITOMO BAKELITE CO., LTD.'s primary CPC class — all holders and yearly trends
Top 50 patent holders

See where SUMITOMO BAKELITE CO., LTD. ranks among the largest US patent assignees
All technology classes

Browse every CPC technology area by patent activity
How the score works

The four dimensions behind the Innovation Score

Related

All companies → | All technologies → | Rankings →
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.

All federal data sources used on this page
  • USPTO PatentsView — official U.S. Patent and Trademark Office bulk patent data. patentsview.org
  • USPTO Patent Application Information Retrieval (PAIR) — application status and file history. uspto.gov/patents/pair
  • USPTO Bulk Data Storage System — comprehensive patent text + claims dataset. bulkdata.uspto.gov
  • USPTO CPC Classification — Cooperative Patent Classification scheme for technology categorization. uspto.gov/cpc
  • SEC EDGAR — public filings cross-reference for assignee corporate entity matching. sec.gov/edgar
  • WIPO PATENTSCOPE — international patent context (related international filings). wipo.int/patentscope