Overall rank by patents
#5,475
of 50,000 tracked assignees
USPTO PatentsView assignee record - 63 granted patents across 20 technology areas, recorded in grant years 2022–2025. 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: A61P (SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS).
The verdict
According to USPTO PatentsView, Sumitomo ranks #5,475 of 50,000 tracked US assignees by granted-patent volume, with 63 patents across 20 technology areas.
Sumitomo Pharma Co., Ltd. has been granted 63 US utility patents between 2022 and 2025, placing Sumitomo Pharma Co., Ltd. at #5,475 of 50,000 across all assignees tracked by PlainPatent. This portfolio spans 20 distinct Cooperative Patent Classification (CPC) subclasses, averaging 23.1 claims per patent with primary concentration in A61P (SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS). As a Foreign Corporation, Sumitomo Pharma Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Sumitomo sits between Siemens Healthcare Diagnostics Products Gmbh (63 patents, rank #5,471) and Therma-stor Llc (63 patents, rank #5,479) - the closest US assignees by grant volume. The composite Innovation Score of 64.0/100 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. Historical data spans 2022 through 2025, with 63 total grants over that period. 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. Sumitomo Pharma Co., Ltd.'s 23.1 average claims per patent is an average count, not a measure of claim scope, legal strength, enforceability, or design-around risk. The record spans 20 CPC subclasses. Combined with portfolio volume, these figures let readers compare the documented grant records of assignees in similar technology classes.
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
Siemens Healthcare Diagnostics Products GmbH
63 patents
Silanna UV Technologies Pte Ltd
63 patents
Simplify Medical Pty Ltd
63 patents
Skyhook Wireless, Inc.
63 patents
Suncor Energy Inc.
63 patents
TASER INTERNATIONAL, INC.
63 patents
TEMPUS LABS, INC.
63 patents
THERMA-STOR LLC
63 patents
Sumitomo Pharma Co., Ltd.
63 patents
What this shows Sumitomo holds 63 patents at rank #5,475, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
By rank, the assignees closest to #5,475 in granted patent volume.
Other assignees with the most granted patents in Sumitomo's primary technology class.
Two PlainPatent-derived peer sets for Sumitomo, neither rank-band nor same-CPC leaders (those blocks stay above).
Nearest assignees by Innovation Score (64 here).
Nearest assignees by average claims per patent (23.1 here).
Sumitomo's Innovation Score vs. every tracked assignee
Composite of portfolio volume, grant velocity, technology breadth, and claim depth (0–100)
64 Top 2% higher than 98% 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
Teal-shaded recent years (2020–present) versus the 2022–2019 baseline. Full figures in the table below.
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2022 | 11 | 17.5% |
| 2023 | 19 | 30.2% |
| 2024 | 19 | 30.2% |
| 2025partial year | 14 | 22.2% |
Top 15 of 20 technology areas
Historical grant data only; it does not rate legal strength or current strategy.
Overall rank by patents
#5,475
of 50,000 tracked assignees
64.0 out of 100
How to use this portfolio
Sumitomo's 63 grants land it in the top 2% by Innovation Score, but volume alone doesn't tell you where the strength sits.
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.
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.