USPTO 2015–2025 USPTO PatentsView US Corporation

Chien Luen Industries Co., Ltd., Inc.

USPTO PatentsView assignee record - 34 granted patents across 22 technology areas, recorded in grant years 2015–2025. 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: F04D (NON-POSITIVE-DISPLACEMENT PUMPS).

Compiled by PlainPatent · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

15.1

Avg claims per patent

-62%

5-year grant velocity

The verdict

According to USPTO PatentsView, Chien ranks #9,229 of 50,000 tracked US assignees by granted-patent volume, with 34 patents across 22 technology areas.

#9,229
of 50,000 US assignees by volume: Top 37%
by Innovation Score (39.9/100): 15.1
avg claims per patent: -62%
grant velocity, last 5 yrs

Portfolio overview

Chien Luen Industries Co., Ltd., Inc. has been granted 34 US utility patents between 2015 and 2025, placing Chien Luen Industries Co., Ltd., Inc. at #9,229 of 50,000 across all assignees tracked by PlainPatent. This portfolio spans 22 distinct Cooperative Patent Classification (CPC) subclasses, averaging 15.1 claims per patent with primary concentration in F04D (NON-POSITIVE-DISPLACEMENT PUMPS). As a US Corporation, Chien Luen Industries Co., Ltd., Inc. is one of the more focused assignees in the PatentsView dataset. By volume, Chien sits between Canon Information And Imaging Solutions, Inc. (34 patents, rank #9,229) and Contitech USA, Inc. (34 patents, rank #9,237) - the closest US assignees by grant volume. The composite Innovation Score of 39.9/100 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 9 grants, compared with 24 in the 2015–2019 window, a -62% 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 US Corporation classification provides context for the assignee record, not a conclusion about its business strategy.

Claim depth and technology breadth describe this aggregate record. Chien Luen Industries Co., Ltd., Inc.'s 15.1 average claims per patent is an average count, not a measure of claim scope, legal strength, enforceability, or design-around risk. The record spans 22 CPC subclasses. Combined with portfolio volume, these figures let readers compare the documented grant records of assignees in similar technology classes.

Canon Information…

34
Canrig Robotic AS

34
Carebay Europe

34
Celldex Therapeut…

34
Clearone

34
Computime

34
Consolidated Metco

34
Contitech USA

34
Chien Luen Indust… ◀

34

What this shows Chien holds 34 patents at rank #9,233, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Chien

By rank, the assignees closest to #9,233 in granted patent volume.

Leaders in F04D (Non-positive-displacement Pumps)

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

Assignees with similar portfolio profiles

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

Similar innovation score

Nearest assignees by Innovation Score (40 here).

Edico Genome Corporation 40 Xcelsis Corporation 40 Hytera Communications Corporation Limited 40 Snow Joe, Llc 40

Chien'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 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

USPTO utility patent grants by year · 2015–2025

Grants by year

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

View data table

Chien Luen Industries Co., Ltd., Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	7	20.6%
2016	7	20.6%
2017	6	17.6%
2019	4	11.8%
2020	4	11.8%
2021	2	5.9%
2022	3	8.8%
2025partial year	1	2.9%

Which technologies does Chien Luen Industries Co., Ltd., Inc. patent most?

F04D - NON-POSITIVE-DISPLACEMENT PUMPS 17

F21V - FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR 15

F24F - AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING 12

H05B - ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL 6

F21Y - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED 5

E03D - WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR 4

F21S - NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS 4

F05D - INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS 3

F21W - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS 3

H04R - LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS 2

B29L - INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES 2

B29C - SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 2

B29K - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR ; MOULDS, ; REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS 2

C08L - COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 2

H01R - ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS 2

Top 15 of 22 technology areas

Grant record at a glance

Portfolio Volume 34 grants

CPC subclasses 22

Avg. claims / grant 15.1

Velocity -62%

Historical grant data only; it does not rate legal strength or current strategy.

Where it ranks

Overall rank by patents

#9,229

of 50,000 tracked assignees

Innovation Score

39.9 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

Where does Chien Luen Industries Co., Ltd., Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Chien Luen Industries Co., Ltd., Inc. ranks #9,229 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 Chien Luen Industries Co., Ltd., Inc. hold?

Chien Luen Industries Co., Ltd., Inc. holds 34 US utility patents granted between 2015 and 2025, spanning 22 technology areas.

What is Chien Luen Industries Co., Ltd., Inc.'s Innovation Score?

Chien Luen Industries Co., Ltd., Inc. 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 Chien Luen Industries Co., Ltd., Inc. focus on?

Chien Luen Industries Co., Ltd., Inc.'s top technology area is F04D (NON-POSITIVE-DISPLACEMENT PUMPS) with 17 patents. Grants appear in 22 CPC subclasses total.

Is Chien Luen Industries Co., Ltd., Inc.'s patent grant rate increasing or decreasing?

Chien Luen Industries Co., Ltd., Inc.'s recent grant velocity is -62% 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 Chien Luen Industries Co., Ltd., Inc.'s patents?

Chien Luen Industries Co., Ltd., Inc.'s patents average 15.1 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 Chien Luen Industries Co., Ltd., Inc. 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

Chien's 34 grants land it in the top 37% 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 - Chien ranks #9,229 of 50,000. Top 50 holders
Most of this portfolio concentrates in F04D - see who else leads that technology area. F04D 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.

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.