Where does China Wafer Level CSP Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), China Wafer Level CSP Co., Ltd. ranks #11,209 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does China Wafer Level CSP Co., Ltd. hold?

China Wafer Level CSP Co., Ltd. holds 27 US utility patents granted between 2015 and 2021, spanning 5 technology areas.

What is China Wafer Level CSP Co., Ltd.'s Innovation Score?

China Wafer Level CSP Co., Ltd. has an Innovation Score of 29.4 out of 100 (30th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does China Wafer Level CSP Co., Ltd. focus on?

China Wafer Level CSP Co., Ltd.'s top technology area is H01L (Semiconductor Devices NOT Covered BY Class H10) with 25 patents, ranking #512 of 3,373 assignees active in that subclass. Grants appear in 5 CPC subclasses total.

Is China Wafer Level CSP Co., Ltd.'s patent grant rate increasing or decreasing?

China Wafer Level CSP Co., Ltd.'s recent grant velocity is -50% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

What does claim depth mean for China Wafer Level CSP Co., Ltd.'s patents?

China Wafer Level CSP Co., Ltd.'s patents average 16.6 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 China Wafer Level CSP Co., Ltd. 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

China Wafer Level CSP Co., Ltd.

USPTO PatentsView assignee record - 27 granted patents across 5 technology areas, recorded in grant years 2015–2021. 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: H01L (Semiconductor Devices NOT Covered BY Class H10).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, China ranks #11,209 of 49,997 tracked US assignees by granted-patent volume, with 27 patents across 5 technology areas.

#11,209
of 49,997 US assignees by volume: 30th percentile
by Innovation Score (29.4/100): 16.6
avg claims per patent: -50%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R11209 · Foreign Corporation #11,209 · 27 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-RICH · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-SMALL 27 grants
UPPER-Q #11,209/49,997
PHOTO-FINISH Casper Sleep
CPC-NARROW H01L · 5 areas
INNOV-THIN 29.4/100
CLAIMS-RICH 16.6 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -50% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Casper Sleep Inc. (±0 grants)

Instrument codes from this assignee’s USPTO PatentsView grant sheet: volume band, corpus rank, photo-finish peer, lead CPC, Innovation Score, claim depth, assignee type, velocity, and book completeness. Not a USPTO rating of patent strength.

How China’s 29.4 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Volume 11.5 pts (39%) Velocity 0.0 pts (0%) Breadth 7.9 pts (27%) Claim depth 9.9 pts (34%)

Qualcomm Incorporated · highest

85
Northern Tool &… · near

29
BrightGene Bio-Medic… · near

29
China Wafer Level CSP · this assignee

29
SciPharm S à r l · near

29
Tervis Tumbler · near

29
3D Lighting… · lowest

7

What this shows China's Innovation Score is 29.4/100 (30th percentile of the PatentsView-derived corpus). The chart places that score against the nearest Innovation Score peers plus corpus poles, not a reprint of the volume ranking.

Does more volume mean deeper claims for China?

Each dot is one of China’s 8 nearest volume peers (same corpus rank neighbourhood as the chart above), placed by total granted patents (horizontal) against average claims per patent (vertical). China’s own 16.6 claims/patent is at or below the 17.7 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

China vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where China's grants concentrate

China Wafer Level CSP Co., Ltd. is a focused PatentsView assignee: 5 CPC subclasses with 92.6% of grants classified under H01L (Semiconductor Devices NOT Covered BY Class H10). Peak complete grant year is 2020 (8 grants) versus a trough of 1 in 2015. By volume, China sits between Casper Sleep Inc. and Clariant Corporation.

Casper Sleep

27
Centrak

27
Cequent Performan…

27
Charm Sciences

27
Chromatic

27
Chrysanthemum Bre…

27
Chunghwa Telecom

27
Clariant

27
China Wafer Level… ◀

27

What this shows China holds 27 patents at rank #11,214, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near China

By rank, the assignees closest to #11,214 in granted patent volume.

Leaders in H01L (Semiconductor Devices NOT Covered BY Class H10)

Other assignees with the most granted patents in China's primary technology class.

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for China, neither rank-band nor same-CPC leaders (those blocks stay above). In H01L (Semiconductor Devices NOT Covered BY Class H10), China ranks #512 of 3,373 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (29 here).

Tervis Tumbler Company 29 SciPharm S.à.r.l 29 BrightGene Bio-Medical Technology Co., Ltd. 29 Northern Tool & Equipment Company, Inc. 29

China's Innovation Score vs. every tracked assignee

Composite of portfolio volume, grant velocity, technology breadth, and claim depth (0–100)

29 30th percentile higher than 30% of 49,997 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

USPTO utility patent grants by year · 2015–2021

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

China Wafer Level CSP Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	3.7%
2016	4	14.8%
2017	2	7.4%
2018	5	18.5%
2019	6	22.2%
2020	8	29.6%
2021	1	3.7%

Which technologies does China Wafer Level CSP Co., Ltd. patent most?

H01L - Semiconductor Devices NOT Covered BY Class H10 25

H10F - Inorganic Semiconductor Devices Sensitive TO Infrared Radiation, Light, Electromagnetic Radiation OF Shorter Wavelength OR Corpuscular Radiation 19

G06V - Image OR Video Recognition OR Understanding 7

H10H - Inorganic Light-emitting Semiconductor Devices Having Potential Barriers 1

G01D - Measuring NOT Specially Adapted FOR A Specific VARIABLE; Arrangements FOR Measuring TWO OR More Variables NOT Covered IN A Single Other SUBCLASS; Tariff Metering APPARATUS; Measuring OR Testing NOT Otherwise Provided FOR 1

Top 5 of 5 technology areas

More on this record

Data Source

USPTO PatentsView, US granted patents 2015–2025

View all rankings → How is Innovation Score calculated?

What to do with this data

China Wafer Level CSP Co., Ltd.'s patent record in context - here's where to go next.

China Wafer Level CSP Co., Ltd.'s lead technology class is H01L (Semiconductor Devices NOT Covered BY Class H10), 92.6% of its portfolio - see every assignee active in that class. Explore H01L
Ranked #11,209 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare China Wafer Level CSP Co., Ltd. against Casper Sleep Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 29.4/100 blends volume, velocity, technology breadth, and claim depth. How it's calculated

Figures reflect USPTO PatentsView grant data through May 2026; pending applications not yet granted are not counted.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the USPTO PatentsView database. Consult a qualified professional before making decisions based on this data.

Read our methodology - how this data is sourced, computed, and verified.

Data sources used on this page

USPTO PatentsView - the disambiguated bulk patent-grant, assignee, and CPC data this page's figures are derived from. patentsview.org
Cooperative Patent Classification (CPC) - the joint USPTO/EPO classification scheme used to group patents by technology area. cooperativepatentclassification.org
USPTO Patent Public Search - the official interface to verify the status of any individual patent. ppubs.uspto.gov

Compiled by PlainPatent, US Patent Intelligence Editorial Process · May 15, 2026

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.