USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Pujiang Sansi Optoelectronic Technology Co. Ltd.

USPTO PatentsView assignee record - 10 granted patents across 12 technology areas, active 2022–2024. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: 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).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

8.4

Avg claims per patent

5-year filing velocity

The verdict

Pujiang holds 10 US patents across 12 technology areas, rank #27,189 of 50,000 tracked assignees.

#27,189
of 50,000 US assignees by volume: Top 23%
by Innovation Score (45.6/100): 8.4
avg claims per patent

Portfolio overview

Pujiang Sansi Optoelectronic Technology Co. Ltd. has been granted 10 US utility patents between 2022 and 2024, placing Pujiang Sansi Optoelectronic Technology Co. Ltd. at rank #27,189 across all assignees tracked by PlainPatent. This portfolio spans 12 distinct Cooperative Patent Classification (CPC) subclasses, averaging 8.4 claims per patent with primary concentration in 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). As a Foreign Corporation, Pujiang Sansi Optoelectronic Technology Co. Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Pujiang sits between Prostar Energy Technologies (usa) Llc (10 patents, rank #27,185) and QILU University OF Technology (shandong Academy OF Sciences) (10 patents, rank #27,193) - the closest US assignees by grant volume. The composite Innovation Score of 45.6/100 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. Historical data spans 2022 through 2024, with 10 total grants over that period. Velocity comparisons require five years of historical filings to calibrate. 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. Pujiang Sansi Optoelectronic Technology Co. Ltd.'s 8.4 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while concentration in 12 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Pujiang Sansi Optoelectronic Technology Co. Ltd. against peers pursuing similar technology classes.

Prostar Energy (U…

10
Proventia Oy

10
Pryon Incorporated

10
Pubnub

10
Pulmatrix Operati…

10
Pulse Health

10
Pulseon Oy

10
QILU University O…

10
Pujiang Sansi Opt… ◀

10

What this shows Pujiang holds 10 patents at rank #27,189, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Pujiang

By rank, the assignees closest to #27,189 in granted patent volume.

Leaders in F21Y (Indexing Scheme Associated WITH Subclasses F21K)

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

Pujiang's Innovation Score vs. every tracked assignee

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

46 Top 23% higher than 77% 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 · 2022–2024

Grants by year

Teal-shaded recent years (2020–present) versus the 2022–2019 baseline. Full figures in the table below.

View data table

Pujiang Sansi Optoelectronic Technology Co. Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2022	3	30.0%
2023	5	50.0%
2024	2	20.0%

Which technologies does Pujiang Sansi Optoelectronic Technology Co. Ltd. patent most?

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 7

F21V - FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR 7

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 4

A61L - METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES 3

H05B - ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL 2

Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS 2

G06V - IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING 1

H04R - LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS 1

G01P - MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT 1

F21S - NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS 1

A01G - HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING 1

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 1

Top 12 of 12 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Simple

Where it ranks

Overall rank by patents

#27,189

Across all tracked assignees

Innovation Score

45.6 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 Pujiang Sansi Optoelectronic Technology Co. Ltd. hold?

Pujiang Sansi Optoelectronic Technology Co. Ltd. holds 10 US granted patents filed between 2022 and 2024, spanning 12 technology areas.

What is Pujiang Sansi Optoelectronic Technology Co. Ltd.'s Innovation Score?

Pujiang Sansi Optoelectronic Technology Co. Ltd. has an Innovation Score of 45.6 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Pujiang Sansi Optoelectronic Technology Co. Ltd. focus on?

Pujiang Sansi Optoelectronic Technology Co. Ltd.'s top technology area is 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) with 7 patents. The company has filed patents in 12 CPC subclasses total.

Is Pujiang Sansi Optoelectronic Technology Co. Ltd.'s patent filing rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Pujiang Sansi Optoelectronic Technology Co. Ltd..

What does claim depth mean for Pujiang Sansi Optoelectronic Technology Co. Ltd.'s patents?

Pujiang Sansi Optoelectronic Technology Co. Ltd.'s patents average 8.4 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Pujiang Sansi Optoelectronic Technology 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

Pujiang's 10 grants land it in the top 23% 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 - Pujiang ranks #27,189 of 50,000. Top 50 holders
Most of this portfolio concentrates in F21Y - see who else leads that technology area. F21Y 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

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.