Overall rank by patents
#13,504
Across all tracked assignees
USPTO PatentsView assignee record - 22 granted patents across 13 technology areas, active 2018–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: Y02E (REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION).
The verdict
Japan holds 22 US patents across 13 technology areas, rank #13,504 of 50,000 tracked assignees.
Japan Technological Research Association OF Artificial Photosynthetic Chemical Process has been granted 22 US utility patents between 2018 and 2025, placing Japan Technological Research Association OF Artificial Photosynthetic Chemical Process at rank #13,504 across all assignees tracked by PlainPatent. This portfolio spans 13 distinct Cooperative Patent Classification (CPC) subclasses, averaging 15.7 claims per patent with primary concentration in Y02E (REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION). As a Foreign Corporation, Japan Technological Research Association OF Artificial Photosynthetic Chemical Process is one of the more focused assignees in the PatentsView dataset. By volume, Japan sits between Iogen Energy Corporation (22 patents, rank #13,500) and Jichi Medical University (22 patents, rank #13,508) - the closest US assignees by grant volume. The composite Innovation Score of 34.3/100 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 8 grants, compared with 14 in the 2015–2019 window, a -43% 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. Japan Technological Research Association OF Artificial Photosynthetic Chemical Process's 15.7 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while concentration in 13 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Japan Technological Research Association OF Artificial Photosynthetic Chemical Process against peers pursuing similar technology classes.
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
Iogen Energy Corporation
22 patents
Ironshore Pharmaceuticals & Development, Inc.
22 patents
Ivax Pharmaceuticals Ireland
22 patents
JAKKS PACIFIC INC.
22 patents
JINKO SOLAR (HAINING) CO., LTD.
22 patents
Japan Display West Inc.
22 patents
Jewelex New York, Ltd.
22 patents
Jichi Medical University
22 patents
JAPAN TECHNOLOGICAL RESEARCH ASSOCIATION OF ARTIFICIAL PHOTOSYNTHETIC CHEMICAL PROCESS
22 patents
What this shows Japan holds 22 patents at rank #13,504, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
By rank, the assignees closest to #13,504 in granted patent volume.
Other assignees with the most granted patents in Japan's primary technology class.
Japan's Innovation Score vs. every tracked assignee
Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)
34 Top 53% higher than 47% 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 2018–2019 baseline. Full figures in the table below.
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2018 | 2 | 9.1% |
| 2019 | 12 | 54.5% |
| 2020 | 1 | 4.5% |
| 2021 | 2 | 9.1% |
| 2022 | 2 | 9.1% |
| 2023 | 1 | 4.5% |
| 2025 | 2 | 9.1% |
Top 13 of 13 technology areas
Overall rank by patents
#13,504
Across all tracked assignees
34.3 out of 100
How to use this portfolio
Japan's 22 grants land it in the top 53% 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.