Where does Citizen Electronics Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Citizen Electronics Co., Ltd. ranks #1,638 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 Citizen Electronics Co., Ltd. hold?

Citizen Electronics Co., Ltd. holds 251 US utility patents granted between 2015 and 2025, spanning 28 technology areas.

What is Citizen Electronics Co., Ltd.'s Innovation Score?

Citizen Electronics Co., Ltd. has an Innovation Score of 45.5 out of 100 (top 23% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Citizen Electronics Co., Ltd.'s patent grant rate increasing or decreasing?

Citizen Electronics Co., Ltd.'s recent grant velocity is -76% 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 Citizen Electronics Co., Ltd.'s patents?

Citizen Electronics Co., Ltd.'s patents average 9.8 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 Citizen Electronics 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

Citizen Electronics Co., Ltd.

Q: What technology areas does Citizen Electronics Co., Ltd. focus on?

Citizen Electronics Co., Ltd.'s top technology area is H10H (Inorganic Light-emitting Semiconductor Devices Having Potential Barriers) with 111 patents. Grants appear in 28 CPC subclasses total.

USPTO PatentsView assignee record - 251 granted patents across 28 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: H10H (Inorganic Light-emitting Semiconductor Devices Having Potential Barriers).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Citizen ranks #1,638 of 49,997 tracked US assignees by granted-patent volume, with 251 patents across 28 technology areas.

#1,638
of 49,997 US assignees by volume: Top 23%
by Innovation Score (45.5/100): 9.8
avg claims per patent: -76%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R1638 · Foreign Corporation #1,638 · 251 grants

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

GRANTS-MID 251 grants
TOP-DECILE #1,638/49,997
PHOTO-FINISH Datalogic IP Tech S…
CPC-FOCUS H10H · 28 areas
INNOV-PAR 45.5/100
CLAIMS-PAR 9.8 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -76% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Datalogic IP Tech S.R.L. (±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
Citizen · this assignee

45
Danfoss Power… · near

45
Kofax · near

45
Nihon Dempa Kogyo · near

45
Unisys · near

45
3D Lighting… · lowest

7

What this shows Citizen's Innovation Score is 45.5/100 (top 23% 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 Citizen's grants concentrate

Citizen Electronics Co., Ltd. is a focused PatentsView assignee: 28 CPC subclasses with 44.2% of grants classified under H10H (Inorganic Light-emitting Semiconductor Devices Having Potential Barriers). Peak complete grant year is 2017 (56 grants) versus a trough of 3 in 2024. By volume, Citizen sits between PS4 Luxco S.a.r.l. and THE Aerospace Corporation.

Citizen's three-year grant acceleration

From 2019–2021 to 2022–2024, Citizen Electronics Co., Ltd. moved from 66 to 18 grants (0.27x the prior three-year total, a multiple, not a CAGR). Among 3,296 tracked assignees with ≥100 grants and ≥20 prior-period grants, that multiple ranks #3,026. See the growth leaderboard.

PS4 Luxco r l

252
Topgolf Callaway…

252
Verint Systems

252
Wayne State Unive…

252
Datalogic IP Tech…

251
GD Midea Air-cond…

251
Guardian Glass

251
THE Aerospace

251
Citizen ◀

251

What this shows Citizen holds 251 patents at rank #1,638, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Citizen

By rank, the assignees closest to #1,638 in granted patent volume.

Leaders in H10H (Inorganic Light-emitting Semiconductor Devices Having Pot…)

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

Assignees with similar portfolio profiles

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

Similar innovation score

Nearest assignees by Innovation Score (45 here).

Unisys Corporation 45 Nihon Dempa Kogyo Co., Ltd. 45 Kofax, Inc. 45 Danfoss Power Solutions GMBH & Co. OHG 45

Similar claim depth

Nearest assignees by average claims per patent (9.8 here).

Minebea Co., Ltd. 9.8 avg NAN YA Plastics Corporation 9.8 avg Harley-Davidson Motor Company, Inc. 9.8 avg NGK Insulators, Ltd. 9.8 avg

Citizen's Innovation Score vs. every tracked assignee

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

45 Top 23% higher than 77% 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 · 2015–2025

Grants by year

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

View data table

Citizen Electronics Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	28	11.2%
2016	39	15.5%
2017	56	22.3%
2018	41	16.3%
2019	36	14.3%
2020	19	7.6%
2021	11	4.4%
2022	6	2.4%
2023	9	3.6%
2024	3	1.2%
2025partial year	3	1.2%

Which technologies does Citizen Electronics Co., Ltd. patent most?

H10H - Inorganic Light-emitting Semiconductor Devices Having Potential Barriers 111

H01L - Semiconductor Devices NOT Covered BY Class H10 103

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 47

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 40

F21K - Non-electric Light Sources Using LUMINESCENCE; Light Sources Using ELECTROCHEMILUMINESCENCE; Light Sources Using Charges OF Combustible MATERIAL; Light Sources Using Semiconductor Devices AS Light-generating ELEMENTS; Light Sources NOT Otherwise Provided FOR 36

F21V - Functional Features OR Details OF Lighting Devices OR Systems THEREOF; Structural Combinations OF Lighting Devices With Other Articles, NOT Otherwise Provided FOR 36

H01H - Electric SWITCHES; RELAYS; SELECTORS; Emergency Protective Devices 16

C09K - Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere 16

G02B - Optical Elements, Systems OR Apparatus 14

Y02B - Climate Change Mitigation Technologies Related TO Buildings, e.g. Housing, House Appliances OR Related End-user Applications 11

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 10

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 10

F21S - Non-portable Lighting DEVICES; Systems THEREOF; Vehicle Lighting Devices Specially Adapted FOR Vehicle Exteriors 7

C04B - Lime, MAGNESIA; SLAG; CEMENTS; Compositions Thereof, e.g. Mortars, Concrete OR Like Building MATERIALS; Artificial Stone ; Ceramics ; REFRACTORIES; Treatment OF Natural Stone 5

Y10T - Technical Subjects Covered BY Former US Classification 4

Top 15 of 28 technology areas

Where it ranks

Overall rank by patents

#1,638

of 49,997 tracked assignees

Innovation Score

45.5 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

Citizen Electronics Co., Ltd.'s patent record in context - here's where to go next.

Citizen Electronics Co., Ltd.'s lead technology class is H10H (Inorganic Light-emitting Semiconductor Devices Having Potential Barriers), 44.2% of its portfolio - see every assignee active in that class. Explore H10H
Ranked #1,638 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Citizen Electronics Co., Ltd. against PS4 Luxco S.a.r.l., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 45.5/100 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.