Where does CW Holdings Ltd rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), CW Holdings Ltd ranks #20,980 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 CW Holdings Ltd hold?

CW Holdings Ltd holds 13 US utility patents granted between 2017 and 2023, spanning 7 technology areas.

What is CW Holdings Ltd's Innovation Score?

CW Holdings Ltd has an Innovation Score of 39.9 out of 100 (top 37% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does CW Holdings Ltd focus on?

CW Holdings Ltd's top technology area is F04B (Positive-displacement Machines FOR LIQUIDS; Pumps) with 6 patents, ranking #205 of 1,184 assignees active in that subclass. Grants appear in 7 CPC subclasses total.

Is CW Holdings Ltd's patent grant rate increasing or decreasing?

CW Holdings Ltd's recent grant velocity is +450% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for CW Holdings Ltd's patents?

CW Holdings Ltd's patents average 20.1 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 CW Holdings 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

CW Holdings Ltd

USPTO PatentsView assignee record - 13 granted patents across 7 technology areas, recorded in grant years 2017–2023. 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: F04B (Positive-displacement Machines FOR LIQUIDS; Pumps).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, CW ranks #20,980 of 49,997 tracked US assignees by granted-patent volume, with 13 patents across 7 technology areas.

#20,980
of 49,997 US assignees by volume: Top 37%
by Innovation Score (39.9/100): 20.1
avg claims per patent: +450%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R20980 · Foreign Corporation #20,980 · 13 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-DENSE · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 13 grants
MID-PACK #20,980/49,997
PHOTO-FINISH California Eastern…
CPC-NARROW F04B · 7 areas
INNOV-THIN 39.9/100
CLAIMS-DENSE 20.1 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +450% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: California Eastern Laboratories, 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 CW’s 39.9 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 9.1 pts (23%) Velocity 9.3 pts (23%) Breadth 9.4 pts (24%) Claim depth 12.0 pts (30%)

Qualcomm Incorporated · highest

85
CW Holdings · this assignee

40
3D Lighting… · lowest

7

What this shows CW's Innovation Score is 39.9/100 (top 37% 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 CW?

Each dot is one of CW’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). CW’s own 20.1 claims/patent is at or below the 20.1 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where CW's grants concentrate

CW Holdings Ltd is a focused PatentsView assignee: 7 CPC subclasses with 46.2% of grants classified under F04B (Positive-displacement Machines FOR LIQUIDS; Pumps). Peak complete grant year is 2022 (4 grants) versus a trough of 1 in 2017. By volume, CW sits between Crrc Yangtze Group Co., Ltd. and Carbon Engineering Ltd..

CW's three-year grant acceleration

CW Holdings Ltd shows 7 grants in 2022–2024 against only 5 in 2019–2021. That prior window is too thin for a growth multiple (rename and spin-out assignees look artificially high when the baseline is near zero), so PlainPatent withholds a ranked acceleration claim here.

Crrc Yangtze Group

13
Crystal Lagoons (…

13
CS Disco

13
CSL Behring Lengn…

13
Cytori Therapeuti…

13
California Easter…

13
Canburg

13
Carbon Engineering

13
CW Holdings ◀

13

What this shows CW holds 13 patents at rank #20,927, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near CW

By rank, the assignees closest to #20,927 in granted patent volume.

Leaders in F04B (Positive-displacement Machines FOR Liquids)

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

CW's Innovation Score vs. every tracked assignee

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

40 Top 37% higher than 63% 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 · 2017–2023

Grants by year

Teal-shaded recent years (2020–present) versus the 2017–2019 baseline. Full figures in the table below.

View data table

CW Holdings Ltd patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	1	7.7%
2019	1	7.7%
2020	2	15.4%
2021	2	15.4%
2022	4	30.8%
2023	3	23.1%

Which technologies does CW Holdings Ltd patent most?

F04B - Positive-displacement Machines FOR LIQUIDS; Pumps 6

F01B - Machines OR Engines, IN General OR OF Positive-displacement Type, e.g. Steam Engines 6

B25H - Workshop Equipment, e.g. FOR Marking-out WORK; Storage Means FOR Workshops 5

B43K - Implements FOR Writing OR Drawing 4

A47G - Household OR Table Equipment 4

F16M - Frames, Casings OR Beds OF Engines, Machines OR Apparatus, NOT Specific TO Engines, Machines OR Apparatus Provided FOR ELSEWHERE; STANDS; Supports 4

F16B - Devices FOR Fastening OR Securing Constructional Elements OR Machine Parts Together, e.g. Nails, Bolts, Circlips, Clamps, Clips OR WEDGES; Joints OR Jointing 3

Top 7 of 7 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

CW Holdings Ltd's patent record in context - here's where to go next.

CW Holdings Ltd's lead technology class is F04B (Positive-displacement Machines FOR LIQUIDS; Pumps), 46.2% of its portfolio - see every assignee active in that class. Explore F04B
Ranked #20,980 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare CW Holdings Ltd against Crrc Yangtze Group Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 39.9/100 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.