USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Sintai Optical (shenzhen) Co., Ltd.

USPTO PatentsView assignee record - 207 granted patents across 27 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: G02B (OPTICAL ELEMENTS, SYSTEMS OR APPARATUS).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

207

Total patents granted

CPC technology areas

16.2

Avg claims per patent

+25%

5-year filing velocity

The verdict

Sintai holds 207 US patents across 27 technology areas, rank #1,943 of 50,000 tracked assignees.

#1,943
of 50,000 US assignees by volume: Top 9%
by Innovation Score (53.0/100): 16.2
avg claims per patent: +25%
filing velocity, last 5 yrs

Portfolio overview

Sintai Optical (shenzhen) Co., Ltd. has been granted 207 US utility patents between 2015 and 2025, placing Sintai Optical (shenzhen) Co., Ltd. at rank #1,943 across all assignees tracked by PlainPatent. This portfolio spans 27 distinct Cooperative Patent Classification (CPC) subclasses, averaging 16.2 claims per patent with primary concentration in G02B (OPTICAL ELEMENTS, SYSTEMS OR APPARATUS). As a Foreign Corporation, Sintai Optical (shenzhen) Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Sintai sits between Korea Institute OF Machinery & Materials (207 patents, rank #1,939) and Tungaloy Corporation (207 patents, rank #1,947) - the closest US assignees by grant volume. The composite Innovation Score of 53.0/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 115 grants, compared with 92 in the 2015–2019 window, a +25% shift in five-year velocity. Steady filing volume suggests sustained innovation without dramatic pivots. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. Sintai Optical (shenzhen) Co., Ltd.'s 16.2 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a multi-domain presence across 27 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Sintai Optical (shenzhen) Co., Ltd. against peers pursuing similar technology classes.

Korea Institute O…

207
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207
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207
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207
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207
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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.

Sintai's Innovation Score vs. every tracked assignee

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

53 Top 9% higher than 91% 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

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%
2025	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

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Multi-domain

Claim Depth Standard

Velocity Growing

Where it ranks

Overall rank by patents

#1,943

Across all tracked assignees

Innovation Score

53.0 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does Sintai Optical (shenzhen) Co., Ltd. hold?

Sintai Optical (shenzhen) Co., Ltd. holds 207 US granted patents filed 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. This composite metric weighs portfolio volume (40%), filing 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. The company has filed patents in 27 CPC subclasses total.

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

Sintai Optical (shenzhen) Co., Ltd.'s recent filing velocity is +25% compared to the prior five-year period. The company is maintaining or growing its 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 falls within the standard range, providing solid legal coverage.

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.

How to use this portfolio

Sintai's 207 grants land it in the top 9% 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 - Sintai ranks #1,943 of 50,000. Top 50 holders
Most of this portfolio concentrates in G02B - see who else leads that technology area. G02B 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 Editorial

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 byPlainPatent Editorial, US Patent Intelligence Editorial Team · 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.