Where does Chimei Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Chimei Corporation ranks #3,620 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 Chimei Corporation hold?

Chimei Corporation holds 101 US utility patents granted between 2015 and 2023, spanning 34 technology areas.

What is Chimei Corporation's Innovation Score?

Chimei Corporation has an Innovation Score of 47.7 out of 100 (top 18% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Chimei Corporation's patent grant rate increasing or decreasing?

Chimei Corporation's recent grant velocity is -83% 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 Chimei Corporation's patents?

Chimei Corporation's patents average 13.4 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 Chimei Corporation 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

Chimei Corporation

Q: What technology areas does Chimei Corporation focus on?

Chimei Corporation's top technology area is G03F (Photomechanical Production OF Textured OR Patterned Surfaces, e.g. FOR Printing, FOR Processing OF Semiconductor DEVICES; Materials THEREFOR; Originals THEREFOR; Apparatus Specially Adapted THEREFOR;) with 37 patents. Grants appear in 34 CPC subclasses total.

USPTO PatentsView assignee record - 101 granted patents across 34 technology areas, recorded in grant years 2015–2023. 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: G03F (Photomechanical Production OF Textured OR Patterned Surfaces, e.g. FOR Printing, FOR Processing OF Semiconductor DEVICES; Materials THEREFOR; Originals THEREFOR; Apparatus Specially Adapted THEREFOR;).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Chimei ranks #3,620 of 49,997 tracked US assignees by granted-patent volume, with 101 patents across 34 technology areas.

#3,620
of 49,997 US assignees by volume: Top 18%
by Innovation Score (47.7/100): 13.4
avg claims per patent: -83%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R3620 · Foreign Corporation #3,620 · 101 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MID 101 grants
TOP-DECILE #3,620/49,997
PHOTO-FINISH Amsted Rail
CPC-FOCUS G03F · 34 areas
INNOV-PAR 47.7/100
CLAIMS-RICH 13.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -83% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Amsted Rail Company, 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.

Qualcomm Incorporated · highest

85
AOl · near

48
Chimei · this assignee

48
Elevance Renewable… · near

48
Keter Plastic · near

48
Streamlight · near

48
3D Lighting… · lowest

7

What this shows Chimei's Innovation Score is 47.7/100 (top 18% 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.

Where Chimei's grants concentrate

Chimei Corporation is a focused PatentsView assignee: 34 CPC subclasses with 36.6% of grants classified under G03F (Photomechanical Production OF Textured OR Patterned Surfaces, e.g. FOR Printing, FOR Processing OF Semiconductor DEVICES; Materials THEREFOR; Originals THEREFOR; Apparatus Specially Adapted THEREFOR;). Peak complete grant year is 2015 (31 grants) versus a trough of 1 in 2023. By volume, Chimei sits between Amsted Rail Company, Inc. and Delphi International Operations Luxembourg S.A.R.L..

Chimei's three-year grant acceleration

Chimei Corporation shows 6 grants in 2022–2024 against only 13 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.

Amsted Rail

101
Bentley Motors

101
Ceraloc Innovatio…

101
Chang Chun Petroc…

101
Consiglio Naziona…

101
CPG

101
Curna

101
Delphi Internatio…

101
Chimei ◀

101

What this shows Chimei holds 101 patents at rank #3,620, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Chimei

By rank, the assignees closest to #3,620 in granted patent volume.

Leaders in G03F (Photomechanical Production OF Textured OR Patterned Surfaces)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Chimei, neither rank-band nor same-CPC leaders (those blocks stay above).

Similar innovation score

Nearest assignees by Innovation Score (48 here).

Elevance Renewable Sciences, Inc. 48 Streamlight, Inc. 48 Keter Plastic Ltd. 48 AOl 48

Similar claim depth

Nearest assignees by average claims per patent (13.4 here).

Dreamwell, Ltd. 13.4 avg Husky Injection Molding Systems Ltd. 13.4 avg Wuhan Xinxin Semiconductor Manufacturing Co., Ltd. 13.4 avg OCÉ-TECHNOLOGIES B.V. 13.4 avg

Chimei's Innovation Score vs. every tracked assignee

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

48 Top 18% higher than 82% 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 · 2015–2023

Grants by year

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

View data table

Chimei Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	31	30.7%
2016	26	25.7%
2017	10	9.9%
2018	15	14.9%
2019	4	4.0%
2020	3	3.0%
2021	6	5.9%
2022	5	5.0%
2023	1	1.0%

Which technologies does Chimei Corporation patent most?

G03F - Photomechanical Production OF Textured OR Patterned Surfaces, e.g. FOR Printing, FOR Processing OF Semiconductor DEVICES; Materials THEREFOR; Originals THEREFOR; Apparatus Specially Adapted THEREFOR; 37

C09K - Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere 30

G02F - Optical Devices OR Arrangements FOR THE Control OF Light BY Modification OF THE Optical Properties OF THE Media OF THE Elements Involved THEREIN; Non-linear OPTICS; Frequency-changing OF LIGHT; Optical Logic ELEMENTS; Optical ANALOGUE/DIGITAL Converters 30

G02B - Optical Elements, Systems OR Apparatus 25

C08G - Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds 23

C08L - Compositions OF Macromolecular Compounds 23

C09D - Coating Compositions, e.g. Paints, Varnishes OR LACQUERS; Filling PASTES; Chemical Paint OR INK REMOVERS; INKS; Correcting FLUIDS; WOODSTAINS; Pastes OR Solids FOR Colouring OR PRINTING; USE OF Materials Therefor 17

C08F - Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds 16

H10H - Inorganic Light-emitting Semiconductor Devices Having Potential Barriers 15

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 11

H01L - Semiconductor Devices NOT Covered BY Class H10 8

B60C - Vehicle TYRES; Tyre INFLATION; Tyre CHANGING; Connecting Valves TO Inflatable Elastic Bodies IN GENERAL; Devices OR Arrangements Related TO Tyres 6

C08C - Treatment OR Chemical Modification OF Rubbers 6

Y10T - Technical Subjects Covered BY Former US Classification 5

C08J - WORKING-UP; General Processes OF COMPOUNDING; After-treatment NOT Covered BY Subclasses C08b, C08c, C08f, C08g or C08h 5

Top 15 of 34 technology areas

Where it ranks

Overall rank by patents

#3,620

of 49,997 tracked assignees

Innovation Score

47.7 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

What to do with this data

Chimei Corporation's patent record in context - here's where to go next.

Chimei Corporation's lead technology class is G03F (Photomechanical Production OF Textured OR Patterned Surfaces, e.g. FOR Printing, FOR Processing OF Semiconductor DEVICES; Materials THEREFOR; Originals THEREFOR; Apparatus Specially Adapted THEREFOR;), 36.6% of its portfolio - see every assignee active in that class. Explore G03F
Ranked #3,620 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Chimei Corporation against Amsted Rail Company, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 47.7/100 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.