Where does Sintai Optical (SHENZHEN) Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Sintai Optical (SHENZHEN) Co., Ltd. ranks #1,943 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 Sintai Optical (SHENZHEN) Co., Ltd. hold?

Sintai Optical (SHENZHEN) Co., Ltd. holds 207 US utility patents granted between 2015 and 2025, spanning 27 technology areas.

What is Sintai Optical (SHENZHEN) Co., Ltd.'s Innovation Score?

Sintai Optical (SHENZHEN) Co., Ltd. has an Innovation Score of 53.0 out of 100 (top 9% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Sintai Optical (SHENZHEN) Co., Ltd. focus on?

Sintai Optical (SHENZHEN) Co., Ltd.'s top technology area is G02B (Optical Elements, Systems OR Apparatus) with 156 patents, ranking #106 of 4,891 assignees active in that subclass. Grants appear in 27 CPC subclasses total.

Is Sintai Optical (SHENZHEN) Co., Ltd.'s patent grant rate increasing or decreasing?

Sintai Optical (SHENZHEN) Co., Ltd.'s recent grant velocity is +10% compared to the prior five-year period (grant years, not application filing dates). The company is maintaining or growing its granted-patent output.

What does claim depth mean for Sintai Optical (SHENZHEN) Co., Ltd.'s patents?

Sintai Optical (SHENZHEN) Co., Ltd.'s patents average 16.2 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 Sintai Optical (SHENZHEN) 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

Sintai Optical (SHENZHEN) Co., Ltd.

USPTO PatentsView assignee record - 207 granted patents across 27 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: G02B (Optical Elements, Systems OR Apparatus).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Sintai ranks #1,943 of 49,997 tracked US assignees by granted-patent volume, with 207 patents across 27 technology areas.

#1,943
of 49,997 US assignees by volume: Top 9%
by Innovation Score (53.0/100): 16.2
avg claims per patent: +10%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R1943 · Foreign Corporation #1,943 · 207 grants

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

GRANTS-MID 207 grants
TOP-DECILE #1,943/49,997
PHOTO-FINISH Korea Institute OF…
CPC-FOCUS G02B · 27 areas
INNOV-PAR 53.0/100
CLAIMS-RICH 16.2 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-UP +10% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Korea Institute OF Machinery & Materials (±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 Sintai’s 53.0 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 18.4 pts (35%) Velocity 6.5 pts (12%) Breadth 18.4 pts (35%) Claim depth 9.7 pts (18%)

Qualcomm Incorporated · highest

85
B Braun Melsungen · near

53
EGALAX_EMPIA… · near

53
GE Healthcare… · near

53
Sintai Optical… · this assignee

53
Dow Corning · near

53
3D Lighting… · lowest

7

What this shows Sintai's Innovation Score is 53.0/100 (top 9% 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 Sintai?

Each dot is one of Sintai’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). Sintai’s own 16.2 claims/patent is ABOVE the 13.4 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Sintai's grants concentrate

Sintai Optical (SHENZHEN) Co., Ltd. is a focused PatentsView assignee: 27 CPC subclasses with 75.4% of grants classified under G02B (Optical Elements, Systems OR Apparatus). Peak complete grant year is 2020 (24 grants) versus a trough of 15 in 2017. By volume, Sintai sits between Korea Institute OF Machinery & Materials and Tungaloy Corporation.

Sintai's three-year grant acceleration

From 2019–2021 to 2022–2024, Sintai Optical (SHENZHEN) Co., Ltd. moved from 62 to 60 grants (0.97x 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 #1,274. See the growth leaderboard.

Korea Institute O…

207
Magna Closures

207
Safran Nacelles

207
Showa

207
Swimc

207
TDK

207
Transform SR Bran…

207
Tungaloy

207
Sintai Optical (S… ◀

207

What this shows Sintai holds 207 patents at rank #1,943, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Sintai

By rank, the assignees closest to #1,943 in granted patent volume.

Leaders in G02B (Optical Elements)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Sintai, neither rank-band nor same-CPC leaders (those blocks stay above). In G02B (Optical Elements), Sintai ranks #106 of 4,891 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (53 here).

EGALAX_EMPIA Technology Inc. 53 B. Braun Melsungen AG 53 GE Healthcare Bio-Science AB 53 Dow Corning Corporation 53

Similar claim depth

Nearest assignees by average claims per patent (16.2 here).

Ottobock SE & Co. Kgaa 16.2 avg Pfizer Inc. 16.2 avg Diebold Self-Service Systems, Division of Diebold, Incorporated 16.2 avg Extang Corporation 16.2 avg

Sintai's Innovation Score vs. every tracked assignee

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

53 Top 9% higher than 91% 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

Sintai Optical (SHENZHEN) Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	19	9.2%
2016	17	8.2%
2017	15	7.2%
2018	20	9.7%
2019	21	10.1%
2020	24	11.6%
2021	17	8.2%
2022	18	8.7%
2023	22	10.6%
2024	20	9.7%
2025partial year	14	6.8%

Which technologies does Sintai Optical (SHENZHEN) Co., Ltd. patent most?

G02B - Optical Elements, Systems OR Apparatus 156

H04N - Pictorial Communication, e.g. Television 26

G03B - Apparatus OR Arrangements FOR Taking Photographs OR FOR Projecting OR Viewing THEM; Apparatus OR Arrangements Employing Analogous Techniques Using Waves Other Than Optical WAVES; Accessories Therefor 25

F41G - Weapon SIGHTS; Aiming 22

G01S - Radio DIRECTION-FINDING; Radio NAVIGATION; Determining Distance OR Velocity BY USE OF Radio WAVES; Locating OR Presence-detecting BY USE OF THE Reflection OR Reradiation OF Radio WAVES; Analogous Arrangements Using Other Waves 11

G01C - Measuring Distances, Levels OR BEARINGS; SURVEYING; NAVIGATION; Gyroscopic INSTRUMENTS; Photogrammetry OR Videogrammetry 8

H04R - Loudspeakers, Microphones, Gramophone Pick-ups OR Like Acoustic Electromechanical TRANSDUCERS; Deaf-aid SETS; Public Address Systems 5

G05G - Control Devices OR Systems Insofar AS Characterised BY Mechanical Features Only 3

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 3

F21V - Functional Features OR Details OF Lighting Devices OR Systems THEREOF; Structural Combinations OF Lighting Devices With Other Articles, NOT Otherwise Provided FOR 3

H02K - Dynamo-electric Machines 3

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 1

H04S - Stereophonic Systems 1

G10K - Sound-producing DEVICES; Methods OR Devices FOR Protecting Against, OR FOR Damping, Noise OR Other Acoustic Waves IN GENERAL; Acoustics NOT Otherwise Provided FOR 1

G06V - Image OR Video Recognition OR Understanding 1

Top 15 of 27 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

Sintai Optical (SHENZHEN) Co., Ltd.'s patent record in context - here's where to go next.

Sintai Optical (SHENZHEN) Co., Ltd.'s lead technology class is G02B (Optical Elements, Systems OR Apparatus), 75.4% of its portfolio - see every assignee active in that class. Explore G02B
Ranked #1,943 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Sintai Optical (SHENZHEN) Co., Ltd. against Korea Institute OF Machinery & Materials, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 53.0/100 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.