Overall rank by patents
#28,543
Across all tracked assignees
USPTO 2015–2025 USPTO PatentsView US Corporation
Diffusion Pharmaceuticals Llc
USPTO PatentsView assignee record - 9 granted patents across 5 technology areas, active 2015–2022. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: A61P (SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS).
9
Total patents granted
5
CPC technology areas
21.1
Avg claims per patent
-20%
5-year filing velocity
The verdict
Diffusion holds 9 US patents across 5 technology areas, rank #28,543 of 50,000 tracked assignees.
- #28,543
- of 50,000 US assignees by volume
- Top 50%
- by Innovation Score (35.2/100)
- 21.1
- avg claims per patent
- -20%
- filing velocity, last 5 yrs
Portfolio overview
Diffusion Pharmaceuticals Llc has been granted 9 US utility patents between 2015 and 2022, placing Diffusion Pharmaceuticals Llc at rank #28,543 across all assignees tracked by PlainPatent. This portfolio spans 5 distinct Cooperative Patent Classification (CPC) subclasses, averaging 21.1 claims per patent with primary concentration in A61P (SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS). As a US Corporation, Diffusion Pharmaceuticals Llc is one of the more focused assignees in the PatentsView dataset. By volume, Diffusion sits between Deregallera Holdings Ltd (9 patents, rank #28,539) and Dingfu Biotarget Co., Ltd. (9 patents, rank #28,547) - the closest US assignees by grant volume. The composite Innovation Score of 35.2/100 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 4 grants, compared with 5 in the 2015–2019 window, a -20% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. The US 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. Diffusion Pharmaceuticals Llc's 21.1 average claims per patent reflects complex, broadly scoped inventions that are difficult for competitors to design around, while concentration in 5 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Diffusion Pharmaceuticals Llc against peers pursuing similar technology classes.
Who files at Diffusion's volume?
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
- Deregallera Holdi…
DEREGALLERA HOLDINGS LTD
9 patents
- Detection Technol…
DETECTION TECHNOLOGY OYJ
9 patents
- Deviceeng
DEVICEENG CO., LTD.
9 patents
- Diamond Electric…
DIAMOND ELECTRIC MFG. CO., LTD.
9 patents
- Digital Direct IR
DIGITAL DIRECT IR, INC.
9 patents
- Digital Metal AB
DIGITAL METAL AB
9 patents
- Dignity Sciences…
DIGNITY SCIENCES LIMTED
9 patents
- Dingfu Biotarget
DINGFU BIOTARGET CO., LTD.
9 patents
- Diffusion Pharmac… ◀
DIFFUSION PHARMACEUTICALS LLC
9 patents
What this shows Diffusion holds 9 patents at rank #28,543, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
Companies ranked near Diffusion
By rank, the assignees closest to #28,543 in granted patent volume.
- Deregallera Holdings Ltd #28,539 · 9 patents
- Detection Technology OYJ #28,540 · 9 patents
- Deviceeng Co., Ltd. #28,541 · 9 patents
- Diamond Electric MFG. Co., Ltd. #28,542 · 9 patents
- Digital Direct IR, Inc. #28,544 · 9 patents
- Digital Metal AB #28,545 · 9 patents
- Dignity Sciences Limted #28,546 · 9 patents
- Dingfu Biotarget Co., Ltd. #28,547 · 9 patents
Leaders in A61P (Specific Therapeutic Activity OF Chemical Compounds OR Me…)
Other assignees with the most granted patents in Diffusion's primary technology class.
- The Regents Of The University Of California 1,387 in class
- Novartis Ag 1,071 in class
- Merck Sharp & Dohme Llc 889 in class
- Bristol-myers Squibb Company 879 in class
- Genentech, Inc. 789 in class
- The Board Of Regents Of The University Of Texas System 744 in class
- Hoffmann-la Roche Inc. 722 in class
- The United States Of America, As Represented By The Secretary, Department Of Health And Human Services 721 in class
Diffusion's Innovation Score vs. every tracked assignee
Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)
35 Top 50% higher than 50% 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
Grants by year
Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.
View data table
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2015 | 1 | 11.1% |
| 2017 | 1 | 11.1% |
| 2018 | 3 | 33.3% |
| 2021 | 2 | 22.2% |
| 2022 | 2 | 22.2% |
Which technologies does Diffusion Pharmaceuticals Llc patent most?
Top 5 of 5 technology areas
Patent Moat Analysis
Portfolio Volume Light
Tech Breadth Focused
Claim Depth Complex
Velocity Declining
Frequently Asked Questions
How many patents does Diffusion Pharmaceuticals Llc hold?
Diffusion Pharmaceuticals Llc holds 9 US granted patents filed between 2015 and 2022, spanning 5 technology areas.
What is Diffusion Pharmaceuticals Llc's Innovation Score?
Diffusion Pharmaceuticals Llc has an Innovation Score of 35.2 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does Diffusion Pharmaceuticals Llc focus on?
Diffusion Pharmaceuticals Llc's top technology area is A61P (SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS) with 9 patents. The company has filed patents in 5 CPC subclasses total.
Is Diffusion Pharmaceuticals Llc's patent filing rate increasing or decreasing?
Diffusion Pharmaceuticals Llc's recent filing velocity is -20% compared to the prior five-year period. Filing activity has slowed relative to earlier years.
What does claim depth mean for Diffusion Pharmaceuticals Llc's patents?
Diffusion Pharmaceuticals Llc's patents average 21.1 claims each. This indicates complex, broadly scoped patents that are harder for competitors to design around.
How is the Diffusion Pharmaceuticals Llc 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
Diffusion's 9 grants land it in the top 50% 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 - Diffusion ranks #28,543 of 50,000. Top 50 holders
- Most of this portfolio concentrates in A61P - see who else leads that technology area. A61P 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.
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.