USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Photoscience Japan Corporation

USPTO PatentsView assignee record - 7 granted patents across 10 technology areas, active 2018–2023. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: C02F (TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE).

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

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

11.6

Avg claims per patent

+500%

5-year filing velocity

The verdict

Photoscience holds 7 US patents across 10 technology areas, rank #36,902 of 50,000 tracked assignees.

#36,902
of 50,000 US assignees by volume: Top 40%
by Innovation Score (38.6/100): 11.6
avg claims per patent: +500%
filing velocity, last 5 yrs

Portfolio overview

Photoscience Japan Corporation has been granted 7 US utility patents between 2018 and 2023, placing Photoscience Japan Corporation at rank #36,902 across all assignees tracked by PlainPatent. This portfolio spans 10 distinct Cooperative Patent Classification (CPC) subclasses, averaging 11.6 claims per patent with primary concentration in C02F (TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE). As a Foreign Corporation, Photoscience Japan Corporation is one of the more focused assignees in the PatentsView dataset. By volume, Photoscience sits between PFG IP Llc (7 patents, rank #36,898) and Ping4 Inc. (7 patents, rank #36,906) - the closest US assignees by grant volume. The composite Innovation Score of 38.6/100 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. Between 2020 and 2025 the company received 6 grants, compared with 1 in the 2015–2019 window, a +500% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. 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. Photoscience Japan Corporation's 11.6 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while concentration in 10 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Photoscience Japan Corporation against peers pursuing similar technology classes.

PFG IP

7
Pharmaleads

7
Philips Photonics

7
Photocentric

7
Phraxis

7
Phytoplant Resear…

7
Picote Solutions

7
Ping4

7
Photoscience Japan ◀

7

What this shows Photoscience holds 7 patents at rank #36,902, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Photoscience

By rank, the assignees closest to #36,902 in granted patent volume.

Leaders in C02F (Treatment OF Water)

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

Photoscience's Innovation Score vs. every tracked assignee

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

39 Top 40% higher than 60% 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

Photoscience Japan Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2018	1	14.3%
2020	1	14.3%
2021	1	14.3%
2022	3	42.9%
2023	1	14.3%

Which technologies does Photoscience Japan Corporation patent most?

C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 4

H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS 2

H05K - PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 2

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 2

H05B - ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL 1

Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS 1

B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 1

H01L - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10 1

Y02W - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT 1

H10H - INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS 1

Top 10 of 10 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Simple

Velocity Accelerating

Where it ranks

Overall rank by patents

#36,902

Across all tracked assignees

Innovation Score

38.6 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 Photoscience Japan Corporation hold?

Photoscience Japan Corporation holds 7 US granted patents filed between 2018 and 2023, spanning 10 technology areas.

What is Photoscience Japan Corporation's Innovation Score?

Photoscience Japan Corporation has an Innovation Score of 38.6 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Photoscience Japan Corporation focus on?

Photoscience Japan Corporation's top technology area is C02F (TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE) with 4 patents. The company has filed patents in 10 CPC subclasses total.

Is Photoscience Japan Corporation's patent filing rate increasing or decreasing?

Photoscience Japan Corporation's recent filing velocity is +500% compared to the prior five-year period. This indicates accelerating innovation.

What does claim depth mean for Photoscience Japan Corporation's patents?

Photoscience Japan Corporation's patents average 11.6 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Photoscience Japan Corporation 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

Photoscience's 7 grants land it in the top 40% 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 - Photoscience ranks #36,902 of 50,000. Top 50 holders
Most of this portfolio concentrates in C02F - see who else leads that technology area. C02F 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.