Overall rank by patents
#4,783
Across all tracked assignees
USPTO PatentsView assignee record - 73 granted patents across 8 technology areas, active 2015–2025. 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).
The verdict
Purdue holds 73 US patents across 8 technology areas, rank #4,783 of 50,000 tracked assignees.
Purdue Pharmaceuticals L.p. has been granted 73 US utility patents between 2015 and 2025, placing Purdue Pharmaceuticals L.p. at rank #4,783 across all assignees tracked by PlainPatent. This portfolio spans 8 distinct Cooperative Patent Classification (CPC) subclasses, averaging 22.4 claims per patent with primary concentration in A61P (SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS). As a US Corporation, Purdue Pharmaceuticals L.p. is one of the more focused assignees in the PatentsView dataset. By volume, Purdue sits between LMS Co., Ltd. (73 patents, rank #4,779) and Qingdao Haier DRUM Washing Machine Co., Ltd. (73 patents, rank #4,787) - the closest US assignees by grant volume. The composite Innovation Score of 51.6/100 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 15 grants, compared with 58 in the 2015–2019 window, a -74% 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. Purdue Pharmaceuticals L.p.'s 22.4 average claims per patent reflects complex, broadly scoped inventions that are difficult for competitors to design around, while concentration in 8 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Purdue Pharmaceuticals L.p. against peers pursuing similar technology classes.
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
LMS Co., Ltd.
73 patents
MURAKAMI CORPORATION
73 patents
NDSU RESEARCH FOUNDATION
73 patents
NERVIANO MEDICAL SCIENCES S.R.L.
73 patents
Performance Designed Products LLC
73 patents
Pride Mobility Products Corporation
73 patents
Prognosys Biosciences, Inc.
73 patents
QINGDAO HAIER DRUM WASHING MACHINE CO., LTD.
73 patents
PURDUE PHARMACEUTICALS L.P.
73 patents
What this shows Purdue holds 73 patents at rank #4,783, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
By rank, the assignees closest to #4,783 in granted patent volume.
Other assignees with the most granted patents in Purdue's primary technology class.
Purdue's Innovation Score vs. every tracked assignee
Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)
52 Top 11% higher than 89% 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 2015–2019 baseline. Full figures in the table below.
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2015 | 10 | 13.7% |
| 2016 | 17 | 23.3% |
| 2017 | 14 | 19.2% |
| 2018 | 14 | 19.2% |
| 2019 | 3 | 4.1% |
| 2020 | 2 | 2.7% |
| 2022 | 5 | 6.8% |
| 2023 | 1 | 1.4% |
| 2024 | 4 | 5.5% |
| 2025 | 3 | 4.1% |
Top 8 of 8 technology areas
Overall rank by patents
#4,783
Across all tracked assignees
51.6 out of 100
How to use this portfolio
Purdue's 73 grants land it in the top 11% 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.