Where does Changing International Company Limited rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Changing International Company Limited ranks #45,595 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 Changing International Company Limited hold?

Changing International Company Limited holds 5 US utility patents granted between 2016 and 2023, spanning 3 technology areas.

What is Changing International Company Limited's Innovation Score?

Changing International Company Limited has an Innovation Score of 19.7 out of 100 (6th 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 Changing International Company Limited focus on?

Changing International Company Limited's top technology area is G02B (Optical Elements, Systems OR Apparatus) with 2 patents, ranking #2,845 of 4,891 assignees active in that subclass. Grants appear in 3 CPC subclasses total.

Is Changing International Company Limited's patent grant rate increasing or decreasing?

Changing International Company Limited's recent grant velocity is +300% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Changing International Company Limited's patents?

Changing International Company Limited's patents average 8.6 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 Changing International Company 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Changing International Company Limited

USPTO PatentsView assignee record - 5 granted patents across 3 technology areas, recorded in grant years 2016–2023. 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: G02B (Optical Elements, Systems OR Apparatus).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Changing ranks #45,595 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 3 technology areas.

#45,595
of 49,997 US assignees by volume: 6th percentile
by Innovation Score (19.7/100): 8.6
avg claims per patent: +300%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R45595 · Foreign Corporation #45,595 · 5 grants

GRANTS-MICRO · BOTTOM-DECILE · PHOTO-FINISH · CPC-NARROW · INNOV-LOW · CLAIMS-PAR · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 5 grants
BOTTOM-DECILE #45,595/49,997
PHOTO-FINISH Champion Trust
CPC-NARROW G02B · 3 areas
INNOV-LOW 19.7/100
CLAIMS-PAR 8.6 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +300% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Champion Trust LLC (±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 Changing’s 19.7 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 6.2 pts (31%) Velocity 2.2 pts (11%) Breadth 6.1 pts (31%) Claim depth 5.2 pts (26%)

Qualcomm Incorporated · highest

85
Changing International · this assignee

20
3D Lighting… · lowest

7

What this shows Changing's Innovation Score is 19.7/100 (6th 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 Changing?

Each dot is one of Changing’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). Changing’s own 8.6 claims/patent is at or below the 10.6 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Changing's grants concentrate

Changing International Company Limited is a focused PatentsView assignee: 3 CPC subclasses with 40% of grants classified under G02B (Optical Elements, Systems OR Apparatus). Peak complete grant year is 2021 (2 grants) versus a trough of 1 in 2016. By volume, Changing sits between Champion Trust LLC and Chaperone Therapeutics, Inc..

Changing's three-year grant acceleration

Changing International Company Limited shows 1 grants in 2022–2024 against only 3 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.

Champion Trust

5
Champtek Incorpor…

5
Chandlertec

5
Chang YOW Interna…

5
Changjiang Survey…

5
Changzheng Engine…

5
Changzhou Kaisen…

5
Chaperone Therape…

5
Changing Internat… ◀

5

What this shows Changing holds 5 patents at rank #45,502, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Changing

By rank, the assignees closest to #45,502 in granted patent volume.

Leaders in G02B (Optical Elements)

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

Changing's Innovation Score vs. every tracked assignee

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

20 6th percentile higher than 6% 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 · 2016–2023

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Changing International Company Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	20.0%
2020	1	20.0%
2021	2	40.0%
2023	1	20.0%

Which technologies does Changing International Company Limited patent most?

G02B - Optical Elements, Systems OR Apparatus 2

H04N - Pictorial Communication, e.g. Television 2

F41G - Weapon SIGHTS; Aiming 1

Top 3 of 3 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

Changing International Company Limited's patent record in context - here's where to go next.

Changing International Company Limited's lead technology class is G02B (Optical Elements, Systems OR Apparatus), 40% of its portfolio - see every assignee active in that class. Explore G02B
Ranked #45,595 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Changing International Company Limited against Champion Trust LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 19.7/100 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.