USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Erwin Junker Maschinenfabrik Gmbh

USPTO PatentsView assignee record - 11 granted patents across 8 technology areas, active 2015–2022. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: B24B (MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING ; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

14.9

Avg claims per patent

-43%

5-year filing velocity

The verdict

Erwin holds 11 US patents across 8 technology areas, rank #24,298 of 50,000 tracked assignees.

#24,298
of 50,000 US assignees by volume: Top 71%
by Innovation Score (28.9/100): 14.9
avg claims per patent: -43%
filing velocity, last 5 yrs

Portfolio overview

Erwin Junker Maschinenfabrik Gmbh has been granted 11 US utility patents between 2015 and 2022, placing Erwin Junker Maschinenfabrik Gmbh at rank #24,298 across all assignees tracked by PlainPatent. This portfolio spans 8 distinct Cooperative Patent Classification (CPC) subclasses, averaging 14.9 claims per patent with primary concentration in B24B (MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING ; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS). As a Foreign Corporation, Erwin Junker Maschinenfabrik Gmbh is one of the more focused assignees in the PatentsView dataset. By volume, Erwin sits between Ennis-flint, Inc. (11 patents, rank #24,294) and Eutropics Pharmaceuticals, Inc. (11 patents, rank #24,302) - the closest US assignees by grant volume. The composite Innovation Score of 28.9/100 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 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. Erwin Junker Maschinenfabrik Gmbh's 14.9 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while concentration in 8 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Erwin Junker Maschinenfabrik Gmbh against peers pursuing similar technology classes.

Ennis-flint

11
Entasis Therapeut…

11
Eppendorf Himac

11
Erowa

11
Esdec B V

11
Eseye

11
Estetra SPRL

11
Eutropics Pharmac…

11
Erwin Junker Masc… ◀

11

What this shows Erwin holds 11 patents at rank #24,298, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Erwin's Innovation Score vs. every tracked assignee

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

29 Top 71% higher than 29% 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 · 2015–2022

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

Erwin Junker Maschinenfabrik Gmbh patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	9.1%
2016	2	18.2%
2018	2	18.2%
2019	2	18.2%
2020	3	27.3%
2022	1	9.1%

Which technologies does Erwin Junker Maschinenfabrik Gmbh patent most?

B24B - MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING ; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS 10

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 4

B23B - TURNING; BORING 2

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 2

B23P - METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 1

B21H - MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS 1

B23F - MAKING GEARS OR TOOTHED RACKS 1

F04C - ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS ; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS 1

Top 8 of 8 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Standard

Velocity Declining

Where it ranks

Overall rank by patents

#24,298

Across all tracked assignees

Innovation Score

28.9 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 Erwin Junker Maschinenfabrik Gmbh hold?

Erwin Junker Maschinenfabrik Gmbh holds 11 US granted patents filed between 2015 and 2022, spanning 8 technology areas.

What is Erwin Junker Maschinenfabrik Gmbh's Innovation Score?

Erwin Junker Maschinenfabrik Gmbh has an Innovation Score of 28.9 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Erwin Junker Maschinenfabrik Gmbh focus on?

Erwin Junker Maschinenfabrik Gmbh's top technology area is B24B (MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING ; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS) with 10 patents. The company has filed patents in 8 CPC subclasses total.

Is Erwin Junker Maschinenfabrik Gmbh's patent filing rate increasing or decreasing?

Erwin Junker Maschinenfabrik Gmbh'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 Erwin Junker Maschinenfabrik Gmbh's patents?

Erwin Junker Maschinenfabrik Gmbh's patents average 14.9 claims each. This falls within the standard range, providing solid legal coverage.

How is the Erwin Junker Maschinenfabrik Gmbh 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

Erwin's 11 grants land it in the top 71% 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 - Erwin ranks #24,298 of 50,000. Top 50 holders
Most of this portfolio concentrates in B24B - see who else leads that technology area. B24B 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.