Overall rank by patents
#9,851
of 50,000 tracked assignees
USPTO 2015–2025 USPTO PatentsView Foreign Corporation
Purelifi Limited
USPTO PatentsView assignee record - 32 granted patents across 17 technology areas, recorded in grant years 2019–2025. 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: H04B (TRANSMISSION).
32
Total patents granted
17
CPC technology areas
27.4
Avg claims per patent
+733%
5-year grant velocity
The verdict
According to USPTO PatentsView, Purelifi ranks #9,851 of 50,000 tracked US assignees by granted-patent volume, with 32 patents across 17 technology areas.
- #9,851
- of 50,000 US assignees by volume
- Top 9%
- by Innovation Score (53.7/100)
- 27.4
- avg claims per patent
- +733%
- grant velocity, last 5 yrs
Portfolio overview
Purelifi Limited has been granted 32 US utility patents between 2019 and 2025, placing Purelifi Limited at #9,851 of 50,000 across all assignees tracked by PlainPatent. This portfolio spans 17 distinct Cooperative Patent Classification (CPC) subclasses, averaging 27.4 claims per patent with primary concentration in H04B (TRANSMISSION). As a Foreign Corporation, Purelifi Limited is one of the more focused assignees in the PatentsView dataset. By volume, Purelifi sits between Orthopediatrics Corp. (32 patents, rank #9,838) and People Center, Inc. (32 patents, rank #9,846) - the closest US assignees by grant volume. The composite Innovation Score of 53.7/100 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. Between 2020 and 2024 the company received 25 grants, compared with 3 in the 2015–2019 window, a +733% shift in five-year grant velocity. Both windows cover five complete grant years; the latest PatentsView year is a partial release and is excluded from this comparison, though it still appears in the yearly table and chart below. 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. Purelifi Limited's 27.4 average claims per patent is an average count, not a measure of claim scope, legal strength, enforceability, or design-around risk. The record spans 17 CPC subclasses. Combined with portfolio volume, these figures let readers compare the documented grant records of assignees in similar technology classes.
Who files at Purelifi's volume?
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
- Orthopediatrics
OrthoPediatrics Corp.
32 patents
- Physical Optics
PHYSICAL OPTICS CORPORATION
32 patents
- Piamond
PIAMOND CORP.
32 patents
- POE LANG Enterpri…
POE LANG ENTERPRISE CO., LTD.
32 patents
- Paper Converting…
Paper Converting Machine Company
32 patents
- Pat Mcgrath Cosme…
Pat McGrath Cosmetics LLC
32 patents
- Pelican Products
Pelican Products, Inc.
32 patents
- People Center
People Center, Inc.
32 patents
- Purelifi ◀
PURELIFI LIMITED
32 patents
What this shows Purelifi holds 32 patents at rank #9,842, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
Companies ranked near Purelifi
By rank, the assignees closest to #9,842 in granted patent volume.
- Orthopediatrics Corp. #9,838 · 32 patents
- Physical Optics Corporation #9,839 · 32 patents
- Piamond Corp. #9,840 · 32 patents
- POE LANG Enterprise Co., Ltd. #9,841 · 32 patents
- Paper Converting Machine Company #9,843 · 32 patents
- Pat Mcgrath Cosmetics Llc #9,844 · 32 patents
- Pelican Products, Inc. #9,845 · 32 patents
- People Center, Inc. #9,846 · 32 patents
Leaders in H04B (Transmission)
Other assignees with the most granted patents in Purelifi's primary technology class.
- Qualcomm Incorporated 6,670 in class
- Samsung Electronics Co., Ltd. 4,632 in class
- LG Electronics Inc. 3,654 in class
- Huawei Technologies Co., Ltd. 3,555 in class
- Telefonaktiebolaget LM Ericsson (publ) 3,146 in class
- Apple Inc. 2,286 in class
- Intel Corporation 1,705 in class
- SONY Group Corporation 1,475 in class
Assignees with similar portfolio profiles
Two PlainPatent-derived peer sets for Purelifi, neither rank-band nor same-CPC leaders (those blocks stay above).
Similar innovation score
Nearest assignees by Innovation Score (54 here).
Purelifi's Innovation Score vs. every tracked assignee
Composite of portfolio volume, grant velocity, technology breadth, and claim depth (0–100)
54 Top 9% higher than 91% 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 2019–2019 baseline. Full figures in the table below.
View data table
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2019 | 3 | 9.4% |
| 2020 | 3 | 9.4% |
| 2021 | 4 | 12.5% |
| 2022 | 8 | 25.0% |
| 2023 | 6 | 18.8% |
| 2024 | 4 | 12.5% |
| 2025partial year | 4 | 12.5% |
Which technologies does Purelifi Limited patent most?
Top 15 of 17 technology areas
Grant record at a glance
Portfolio Volume 32 grants
CPC subclasses 17
Avg. claims / grant 27.4
Velocity +733%
Historical grant data only; it does not rate legal strength or current strategy.
Frequently Asked Questions
Where does Purelifi Limited rank among US patent assignees?
According to USPTO PatentsView (2015–2025 granted utility patents), Purelifi Limited ranks #9,851 of 50,000 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.
How many patents does Purelifi Limited hold?
Purelifi Limited holds 32 US utility patents granted between 2019 and 2025, spanning 17 technology areas.
What is Purelifi Limited's Innovation Score?
Purelifi Limited has an Innovation Score of 53.7 out of 100 (top 9% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does Purelifi Limited focus on?
Purelifi Limited's top technology area is H04B (TRANSMISSION) with 32 patents. Grants appear in 17 CPC subclasses total.
Is Purelifi Limited's patent grant rate increasing or decreasing?
Purelifi Limited's recent grant velocity is +733% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.
What does claim depth mean for Purelifi Limited's patents?
Purelifi Limited's patents average 27.4 claims each. This is an aggregate descriptive count from the grant record; it does not establish claim scope, legal strength, enforceability, or design-around risk.
How is the Purelifi Limited 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
Purelifi's 32 grants land it in the top 9% 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 - Purelifi ranks #9,851 of 50,000. Top 50 holders
- Most of this portfolio concentrates in H04B - see who else leads that technology area. H04B 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.