PlainPatent
USPTO 2015–2025 USPTO PatentsView Foreign Corporation

PSK Inc.

USPTO PatentsView assignee record - 28 granted patents across 7 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: H01J (ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS).

Explore the portfolio See the ranking
28
Total patents granted
7
CPC technology areas
13.8
Avg claims per patent
+0%
5-year filing velocity

The verdict

PSK holds 28 US patents across 7 technology areas, rank #11,040 of 50,000 tracked assignees.

#11,040
of 50,000 US assignees by volume
Top 45%
by Innovation Score (37.1/100)
13.8
avg claims per patent
+0%
filing velocity, last 5 yrs

Portfolio overview

PSK INC. has been granted 28 US utility patents between 2015 and 2025, placing PSK INC. at rank #11,040 across all assignees tracked by PlainPatent. This portfolio spans 7 distinct Cooperative Patent Classification (CPC) subclasses, averaging 13.8 claims per patent with primary concentration in H01J (ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS). As a Foreign Corporation, PSK INC. is one of the more focused assignees in the PatentsView dataset. The composite Innovation Score of 37.1/100 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 14 grants, compared with 14 in the 2015–2019 window, a +0% 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. PSK INC.'s 13.8 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while concentration in 7 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark PSK INC. against peers pursuing similar technology classes.

How does PSK compare?

Granted US patents 2015–2025 versus the largest corporate holders, this company marked ◀

patents

What this shows PSK holds 28 patents, placing it at rank #11,040 overall, well behind the volume leaders but ahead of the tens of thousands of smaller assignees in the dataset.

Source USPTO PatentsView, granted utility patents As of 2015–2025

PSK's Innovation Score vs. every tracked assignee

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

37 Top 45% higher than 55% of 50,000 US assignees

0–10: 687 US assignees (1%). Below this entry. 10–20: 2,527 US assignees (5%). Below this entry. 20–30: 13,162 US assignees (26%). Below this entry. 30–40: 15,294 US assignees (31%). This entry sits in this band. 40–50: 11,491 US assignees (23%). Above this entry. 50–60: 5,058 US assignees (10%). Above this entry. 60–70: 1,537 US assignees (3%). Above this entry. 70–80: 234 US assignees (0%). Above this entry. 80–90: 10 US assignees (0%). Above this entry. 90–100: 0 US assignees (0%). Above this entry. This assignee 0 100 every tracked assignee, bucketed by value

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

012345 2015201620172018201920212022202320242025 4
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
PSK INC. patent grants by year, 2015–2025
Year Patents Granted Share of Period
2015 1 3.6%
2016 4 14.3%
2017 2 7.1%
2018 4 14.3%
2019 3 10.7%
2021 3 10.7%
2022 2 7.1%
2023 3 10.7%
2024 2 7.1%
2025 4 14.3%

Which technologies does PSK INC. patent most?

Top 7 of 7 technology areas

Patent Moat Analysis

Portfolio Volume Light
Tech Breadth Focused
Claim Depth Standard
Velocity Growing

Where it ranks

Overall rank by patents

#11,040

Across all tracked assignees

Innovation Score

37.1 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 PSK INC. hold?
PSK INC. holds 28 US granted patents filed between 2015 and 2025, spanning 7 technology areas.
What is PSK INC.'s Innovation Score?
PSK INC. has an Innovation Score of 37.1 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does PSK INC. focus on?
PSK INC.'s top technology area is H01J (ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS) with 21 patents. The company has filed patents in 7 CPC subclasses total.
Is PSK INC.'s patent filing rate increasing or decreasing?
PSK INC.'s recent filing velocity is +0% compared to the prior five-year period. The company is maintaining or growing its patent output.
What does claim depth mean for PSK INC.'s patents?
PSK INC.'s patents average 13.8 claims each. This falls within the standard range, providing solid legal coverage.
How is the PSK INC. 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.

Learn More

How Innovation Score Works

Understand the four dimensions behind the composite score
How to Read Patent Data

Plain-English guide to CPC codes, claims, and metrics
Patent Moat Analysis

How companies use patents as competitive barriers

How to use this portfolio

PSK's 28 grants land it in the top 45% 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 - PSK ranks #11,040 of 50,000. Top 50 holders
  • Most of this portfolio concentrates in H01J - see who else leads that technology area. H01J 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.

Explore the patent dataset

H01J technology

PSK INC.'s primary CPC class, all holders and yearly trends
Top 50 patent holders

See where PSK INC. ranks among the largest US patent assignees
All technology classes

Browse every CPC technology area by patent activity
How the score works

The four dimensions behind the Innovation Score

Related

All companies → | All technologies → | Rankings →
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