Where does Erwin Junker Maschinenfabrik GmbH rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Erwin Junker Maschinenfabrik GmbH ranks #24,291 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does Erwin Junker Maschinenfabrik GmbH hold?

Erwin Junker Maschinenfabrik GmbH holds 11 US utility patents granted 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 (29th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Erwin Junker Maschinenfabrik GmbH's patent grant rate increasing or decreasing?

Erwin Junker Maschinenfabrik GmbH's recent grant velocity is -43% compared to the prior five-year period (grant years, not application filing dates). Grant 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 is an aggregate descriptive count from the grant record; it does not establish claim scope, legal strength, enforceability, or design-around risk.

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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Erwin Junker Maschinenfabrik GmbH

Q: 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, ranking #58 of 468 assignees active in that subclass. Grants appear in 8 CPC subclasses total.

USPTO PatentsView assignee record - 11 granted patents across 8 technology areas, recorded in grant years 2015–2022. Grant-trend analysis is cross-referenced to USPTO Patent Public Search; it does not measure application filings, current R&D, or legal strength. 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 by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Erwin ranks #24,291 of 49,997 tracked US assignees by granted-patent volume, with 11 patents across 8 technology areas.

#24,291
of 49,997 US assignees by volume: 29th percentile
by Innovation Score (28.9/100): 14.9
avg claims per patent: -43%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R24291 · Foreign Corporation #24,291 · 11 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-RICH · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 11 grants
MID-PACK #24,291/49,997
PHOTO-FINISH Ennis-Flint
CPC-NARROW B24B · 8 areas
INNOV-THIN 28.9/100
CLAIMS-RICH 14.9 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -43% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Ennis-Flint, Inc. (±0 grants)

Instrument codes from this assignee’s USPTO PatentsView grant sheet: volume band, corpus rank, photo-finish peer, lead CPC, Innovation Score, claim depth, assignee type, velocity, and book completeness. Not a USPTO rating of patent strength.

How Erwin’s 28.9 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Volume 8.6 pts (30%) Velocity 1.3 pts (5%) Breadth 10.0 pts (35%) Claim depth 8.9 pts (31%)

Qualcomm Incorporated · highest

85
Erwin Junker… · this assignee

29
3D Lighting… · lowest

7

What this shows Erwin's Innovation Score is 28.9/100 (29th percentile of the PatentsView-derived corpus). The chart places that score against the nearest Innovation Score peers plus corpus poles, not a reprint of the volume ranking.

Does more volume mean deeper claims for Erwin?

Each dot is one of Erwin’s 8 nearest volume peers (same corpus rank neighbourhood as the chart above), placed by total granted patents (horizontal) against average claims per patent (vertical). Erwin’s own 14.9 claims/patent is ABOVE the 14.7 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

Erwin vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where Erwin's grants concentrate

Erwin Junker Maschinenfabrik GmbH is a focused PatentsView assignee: 8 CPC subclasses with 90.9% of grants classified under B24B (Machines, Devices, OR Processes FOR Grinding OR Polishing ; Dressing OR Conditioning OF Abrading SURFACES; Feeding OF Grinding, Polishing, OR Lapping Agents). Peak complete grant year is 2020 (3 grants) versus a trough of 1 in 2015. By volume, Erwin sits between Ennis-Flint, Inc. and Eutropics Pharmaceuticals, Inc..

Erwin's three-year grant acceleration

Erwin Junker Maschinenfabrik GmbH shows 1 grants in 2022–2024 against only 5 in 2019–2021. That prior window is too thin for a growth multiple (rename and spin-out assignees look artificially high when the baseline is near zero), so PlainPatent withholds a ranked acceleration claim here.

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.

Companies ranked near Erwin

By rank, the assignees closest to #24,298 in granted patent volume.

Leaders in B24B (Machines)

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

Erwin's Innovation Score vs. every tracked assignee

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

29 29th percentile higher than 29% of 49,997 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

More on this record

Data Source

USPTO PatentsView, US granted patents 2015–2025

View all rankings → How is Innovation Score calculated?

What to do with this data

Erwin Junker Maschinenfabrik GmbH's patent record in context - here's where to go next.

Erwin Junker Maschinenfabrik GmbH's lead technology class is B24B (Machines, Devices, OR Processes FOR Grinding OR Polishing ; Dressing OR Conditioning OF Abrading SURFACES; Feeding OF Grinding, Polishing, OR Lapping Agents), 90.9% of its portfolio - see every assignee active in that class. Explore B24B
Ranked #24,291 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Erwin Junker Maschinenfabrik GmbH against Ennis-Flint, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 28.9/100 blends volume, velocity, technology breadth, and claim depth. How it's calculated

Figures reflect USPTO PatentsView grant data through May 2026; pending applications not yet granted are not counted.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent

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 by PlainPatent, US Patent Intelligence Editorial Process · 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.