Overall rank by patents
#5,951
Across all tracked assignees
USPTO 2015–2025 USPTO PatentsView Foreign Corporation
Koganei Corporation
USPTO PatentsView assignee record - 57 granted patents across 37 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: F16K (VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING).
57
Total patents granted
37
CPC technology areas
7.1
Avg claims per patent
-61%
5-year filing velocity
The verdict
Koganei holds 57 US patents across 37 technology areas, rank #5,951 of 50,000 tracked assignees.
- #5,951
- of 50,000 US assignees by volume
- Top 32%
- by Innovation Score (41.9/100)
- 7.1
- avg claims per patent
- -61%
- filing velocity, last 5 yrs
Portfolio overview
Koganei Corporation has been granted 57 US utility patents between 2015 and 2025, placing Koganei Corporation at rank #5,951 across all assignees tracked by PlainPatent. This portfolio spans 37 distinct Cooperative Patent Classification (CPC) subclasses, averaging 7.1 claims per patent with primary concentration in F16K (VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING). As a Foreign Corporation, Koganei Corporation is one of the more focused assignees in the PatentsView dataset. By volume, Koganei sits between Innovation First, Inc. (57 patents, rank #5,947) and Lyondell Chemical Technology, L.p. (57 patents, rank #5,955) - the closest US assignees by grant volume. The composite Innovation Score of 41.9/100 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 16 grants, compared with 41 in the 2015–2019 window, a -61% 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. Koganei Corporation's 7.1 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 37 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Koganei Corporation against peers pursuing similar technology classes.
Who files at Koganei's volume?
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
- Innovation First
Innovation First, Inc.
57 patents
- Ironburg Inventio…
Ironburg Inventions Limited
57 patents
- Japan CASH Machine
JAPAN CASH MACHINE CO., LTD.
57 patents
- Jenavalve Technol…
JenaValve Technology, Inc.
57 patents
- Kwansei Gakuin Ed…
KWANSEI GAKUIN EDUCATIONAL FOUNDATION
57 patents
- Kyosan Electric M…
KYOSAN ELECTRIC MFG. CO., LTD.
57 patents
- La-z-boy Incorpor…
La-Z-Boy Incorporated
57 patents
- Lyondell Chemical…
Lyondell Chemical Technology, L.P.
57 patents
- Koganei ◀
KOGANEI CORPORATION
57 patents
What this shows Koganei holds 57 patents at rank #5,951, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
Companies ranked near Koganei
By rank, the assignees closest to #5,951 in granted patent volume.
- Innovation First, Inc. #5,947 · 57 patents
- Ironburg Inventions Limited #5,948 · 57 patents
- Japan CASH Machine Co., Ltd. #5,949 · 57 patents
- Jenavalve Technology, Inc. #5,950 · 57 patents
- Kwansei Gakuin Educational Foundation #5,952 · 57 patents
- Kyosan Electric MFG. Co., Ltd. #5,953 · 57 patents
- La-z-boy Incorporated #5,954 · 57 patents
- Lyondell Chemical Technology, L.p. #5,955 · 57 patents
Leaders in F16K (Valves)
Other assignees with the most granted patents in Koganei's primary technology class.
- Hamilton Sundstrand Corporation (hsc) 309 in class
- Fisher Controls International Llc 309 in class
- Fujikin Incorporated 153 in class
- Cameron International Corporation 136 in class
- Emerson Process Management Regulator Technologies, Inc. 129 in class
- Halliburton Energy Services, Inc. 123 in class
- Mueller International, Llc 110 in class
- Kohler Co. 103 in class
Koganei's Innovation Score vs. every tracked assignee
Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)
42 Top 32% higher than 68% 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
Grants by year
Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.
View data table
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2015 | 14 | 24.6% |
| 2016 | 6 | 10.5% |
| 2017 | 4 | 7.0% |
| 2018 | 10 | 17.5% |
| 2019 | 7 | 12.3% |
| 2020 | 6 | 10.5% |
| 2021 | 3 | 5.3% |
| 2023 | 1 | 1.8% |
| 2024 | 4 | 7.0% |
| 2025 | 2 | 3.5% |
Which technologies does Koganei Corporation patent most?
Top 15 of 37 technology areas
Patent Moat Analysis
Portfolio Volume Light
Tech Breadth Multi-domain
Claim Depth Simple
Velocity Declining
Frequently Asked Questions
How many patents does Koganei Corporation hold?
Koganei Corporation holds 57 US granted patents filed between 2015 and 2025, spanning 37 technology areas.
What is Koganei Corporation's Innovation Score?
Koganei Corporation has an Innovation Score of 41.9 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does Koganei Corporation focus on?
Koganei Corporation's top technology area is F16K (VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING) with 19 patents. The company has filed patents in 37 CPC subclasses total.
Is Koganei Corporation's patent filing rate increasing or decreasing?
Koganei Corporation's recent filing velocity is -61% compared to the prior five-year period. Filing activity has slowed relative to earlier years.
What does claim depth mean for Koganei Corporation's patents?
Koganei Corporation's patents average 7.1 claims each. This is relatively simple claim structure, typical for focused inventions.
How is the Koganei 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
Koganei's 57 grants land it in the top 32% 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 - Koganei ranks #5,951 of 50,000. Top 50 holders
- Most of this portfolio concentrates in F16K - see who else leads that technology area. F16K 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.
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.