Overall rank by patents
#24,297
Across all tracked assignees
USPTO 2015–2025 USPTO PatentsView Foreign Corporation
Erowa Ag
USPTO PatentsView assignee record - 11 granted patents across 9 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: B23Q (DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING ; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; CO).
11
Total patents granted
9
CPC technology areas
17.3
Avg claims per patent
-43%
5-year filing velocity
The verdict
Erowa holds 11 US patents across 9 technology areas, rank #24,297 of 50,000 tracked assignees.
- #24,297
- of 50,000 US assignees by volume
- Top 47%
- by Innovation Score (36.2/100)
- 17.3
- avg claims per patent
- -43%
- filing velocity, last 5 yrs
Portfolio overview
Erowa Ag has been granted 11 US utility patents between 2015 and 2025, placing Erowa Ag at rank #24,297 across all assignees tracked by PlainPatent. This portfolio spans 9 distinct Cooperative Patent Classification (CPC) subclasses, averaging 17.3 claims per patent with primary concentration in B23Q (DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING ; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; CO). As a Foreign Corporation, Erowa Ag is one of the more focused assignees in the PatentsView dataset. By volume, Erowa sits between Enfabrica Corporation (11 patents, rank #24,293) and Estetra SPRL (11 patents, rank #24,301) - the closest US assignees by grant volume. The composite Innovation Score of 36.2/100 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 4 grants, compared with 7 in the 2015–2019 window, a -43% 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. Erowa Ag's 17.3 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while concentration in 9 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Erowa Ag against peers pursuing similar technology classes.
Who files at Erowa's volume?
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
- Enfabrica
Enfabrica Corporation
11 patents
- Ennis-flint
Ennis-Flint, Inc.
11 patents
- Entasis Therapeut…
Entasis Therapeutics, Inc.
11 patents
- Eppendorf Himac
Eppendorf Himac Technologies Co., Ltd.
11 patents
- Erwin Junker Masc…
Erwin Junker Maschinenfabrik GmbH
11 patents
- Esdec B V
Esdec B.V.
11 patents
- Eseye
Eseye Limited
11 patents
- Estetra SPRL
Estetra SPRL
11 patents
- Erowa ◀
Erowa AG
11 patents
What this shows Erowa holds 11 patents at rank #24,297, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
Erowa's Innovation Score vs. every tracked assignee
Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)
36 Top 47% higher than 53% 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 | 1 | 9.1% |
| 2016 | 1 | 9.1% |
| 2017 | 2 | 18.2% |
| 2018 | 2 | 18.2% |
| 2019 | 1 | 9.1% |
| 2021 | 1 | 9.1% |
| 2024 | 2 | 18.2% |
| 2025 | 1 | 9.1% |
Which technologies does Erowa Ag patent most?
Top 9 of 9 technology areas
Patent Moat Analysis
Portfolio Volume Light
Tech Breadth Focused
Claim Depth Standard
Velocity Declining
Frequently Asked Questions
How many patents does Erowa Ag hold?
Erowa Ag holds 11 US granted patents filed between 2015 and 2025, spanning 9 technology areas.
What is Erowa Ag's Innovation Score?
Erowa Ag has an Innovation Score of 36.2 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does Erowa Ag focus on?
Erowa Ag's top technology area is B23Q (DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING ; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT) with 9 patents. The company has filed patents in 9 CPC subclasses total.
Is Erowa Ag's patent filing rate increasing or decreasing?
Erowa Ag's recent filing velocity is -43% compared to the prior five-year period. Filing activity has slowed relative to earlier years.
What does claim depth mean for Erowa Ag's patents?
Erowa Ag's patents average 17.3 claims each. This falls within the standard range, providing solid legal coverage.
How is the Erowa Ag 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
Erowa's 11 grants land it in the top 47% 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 - Erowa ranks #24,297 of 50,000. Top 50 holders
- Most of this portfolio concentrates in B23Q - see who else leads that technology area. B23Q 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.