USPTO 2015–2025 USPTO PatentsView Foreign Corporation

SKC Hi-tech & Marketing Co., Ltd.

USPTO PatentsView assignee record - 8 granted patents across 14 technology areas, active 2018–2023. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: 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; OPTICA).

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

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

11.8

Avg claims per patent

-40%

5-year filing velocity

The verdict

SKC holds 8 US patents across 14 technology areas, rank #33,223 of 50,000 tracked assignees.

#33,223
of 50,000 US assignees by volume: Top 18%
by Innovation Score (47.9/100): 11.8
avg claims per patent: -40%
filing velocity, last 5 yrs

Portfolio overview

SKC Hi-tech & Marketing Co., Ltd. has been granted 8 US utility patents between 2018 and 2023, placing SKC Hi-tech & Marketing Co., Ltd. at rank #33,223 across all assignees tracked by PlainPatent. This portfolio spans 14 distinct Cooperative Patent Classification (CPC) subclasses, averaging 11.8 claims per patent with primary concentration in 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; OPTICA). As a Foreign Corporation, SKC Hi-tech & Marketing Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, SKC sits between SILK Technologies, Ltd. (8 patents, rank #33,219) and Skygrid, Llc (8 patents, rank #33,227) - the closest US assignees by grant volume. The composite Innovation Score of 47.9/100 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 3 grants, compared with 5 in the 2015–2019 window, a -40% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. 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. SKC Hi-tech & Marketing Co., Ltd.'s 11.8 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while concentration in 14 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark SKC Hi-tech & Marketing Co., Ltd. against peers pursuing similar technology classes.

SILK

8
Simonelli Group S…

8
SINO Medical Scie…

8
Sitrus Technology

8
SKG

8
Skintech LIFE Sci…

8
Skybox Security

8
Skygrid

8
SKC Hi-tech & Mar… ◀

8

What this shows SKC holds 8 patents at rank #33,223, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near SKC

By rank, the assignees closest to #33,223 in granted patent volume.

Leaders in G02F (Optical Devices OR Arrangements FOR THE Control OF Light…)

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

SKC's Innovation Score vs. every tracked assignee

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

48 Top 18% higher than 82% 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 · 2018–2023

Grants by year

Teal-shaded recent years (2020–present) versus the 2018–2019 baseline. Full figures in the table below.

View data table

SKC Hi-tech & Marketing Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2018	4	50.0%
2019	1	12.5%
2022	1	12.5%
2023	2	25.0%

Which technologies does SKC Hi-tech & Marketing Co., Ltd. patent most?

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 5

G02B - OPTICAL ELEMENTS, SYSTEMS OR APPARATUS 5

C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE 2

C08F - MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 2

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 1

C08J - WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H 1

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 1

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 1

C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS 1

B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 1

C08L - COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 1

B42D - BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS 1

B44C - PRODUCING DECORATIVE EFFECTS ; MOSAICS; TARSIA WORK ; PAPERHANGING 1

B44F - SPECIAL DESIGNS OR PICTURES 1

Top 14 of 14 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Simple

Velocity Declining

Where it ranks

Overall rank by patents

#33,223

Across all tracked assignees

Innovation Score

47.9 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 SKC Hi-tech & Marketing Co., Ltd. hold?

SKC Hi-tech & Marketing Co., Ltd. holds 8 US granted patents filed between 2018 and 2023, spanning 14 technology areas.

What is SKC Hi-tech & Marketing Co., Ltd.'s Innovation Score?

SKC Hi-tech & Marketing Co., Ltd. has an Innovation Score of 47.9 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does SKC Hi-tech & Marketing Co., Ltd. focus on?

SKC Hi-tech & Marketing Co., Ltd.'s top technology area is 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) with 5 patents. The company has filed patents in 14 CPC subclasses total.

Is SKC Hi-tech & Marketing Co., Ltd.'s patent filing rate increasing or decreasing?

SKC Hi-tech & Marketing Co., Ltd.'s recent filing velocity is -40% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

What does claim depth mean for SKC Hi-tech & Marketing Co., Ltd.'s patents?

SKC Hi-tech & Marketing Co., Ltd.'s patents average 11.8 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the SKC Hi-tech & Marketing 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

SKC's 8 grants land it in the top 18% 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 - SKC ranks #33,223 of 50,000. Top 50 holders
Most of this portfolio concentrates in G02F - see who else leads that technology area. G02F 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.