Where does Ludwig Ehrhardt GmbH rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Ludwig Ehrhardt GmbH ranks #48,465 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 Ludwig Ehrhardt GmbH hold?

Ludwig Ehrhardt GmbH holds 5 US utility patents granted between 2016 and 2025, spanning 6 technology areas.

What is Ludwig Ehrhardt GmbH's Innovation Score?

Ludwig Ehrhardt GmbH has an Innovation Score of 28.2 out of 100 (26th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Ludwig Ehrhardt GmbH focus on?

Ludwig Ehrhardt GmbH's top technology area is B25B (Tools OR Bench Devices NOT Otherwise Provided FOR, FOR Fastening, Connecting, Disengaging OR Holding) with 3 patents, ranking #170 of 768 assignees active in that subclass. Grants appear in 6 CPC subclasses total.

Is Ludwig Ehrhardt GmbH's patent grant rate increasing or decreasing?

Ludwig Ehrhardt GmbH's recent grant velocity is -67% 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 Ludwig Ehrhardt GmbH's patents?

Ludwig Ehrhardt GmbH's patents average 22.2 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 Ludwig Ehrhardt 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

Ludwig Ehrhardt GmbH

USPTO PatentsView assignee record - 5 granted patents across 6 technology areas, recorded in grant years 2016–2025. 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: B25B (Tools OR Bench Devices NOT Otherwise Provided FOR, FOR Fastening, Connecting, Disengaging OR Holding).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Ludwig ranks #48,465 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 6 technology areas.

#48,465
of 49,997 US assignees by volume: 26th percentile
by Innovation Score (28.2/100): 22.2
avg claims per patent: -67%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R48465 · Foreign Corporation #48,465 · 5 grants

GRANTS-MICRO · BOTTOM-DECILE · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-DENSE · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 5 grants
BOTTOM-DECILE #48,465/49,997
PHOTO-FINISH Los Angeles…
CPC-NARROW B25B · 6 areas
INNOV-THIN 28.2/100
CLAIMS-DENSE 22.2 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -67% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Los Angeles Biomedical Research Institute (±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 Ludwig’s 28.2 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 6.2 pts (22%) Velocity 0.0 pts (0%) Breadth 8.7 pts (31%) Claim depth 13.3 pts (47%)

Qualcomm Incorporated · highest

85
Ludwig Ehrhardt · this assignee

28
3D Lighting… · lowest

7

What this shows Ludwig's Innovation Score is 28.2/100 (26th 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 Ludwig?

Each dot is one of Ludwig’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). Ludwig’s own 22.2 claims/patent is ABOVE the 14.6 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Ludwig's grants concentrate

Ludwig Ehrhardt GmbH is a focused PatentsView assignee: 6 CPC subclasses with 60% of grants classified under B25B (Tools OR Bench Devices NOT Otherwise Provided FOR, FOR Fastening, Connecting, Disengaging OR Holding). Peak complete grant year is 2016 (2 grants) versus a trough of 1 in 2018. By volume, Ludwig sits between Los Angeles Biomedical Research Institute and Lumex Dmcc.

Los Angeles Biome…

5
Lottery Now

5
Lucid Vision Labs

5
Ludlum Measuremen…

5
Lumacyte

5
Lumen Biomedical

5
Lumen Labs (HK)

5
Lumex Dmcc

5
Ludwig Ehrhardt ◀

5

What this shows Ludwig holds 5 patents at rank #48,486, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Ludwig

By rank, the assignees closest to #48,486 in granted patent volume.

Leaders in B25B (Tools OR Bench Devices)

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

Ludwig's Innovation Score vs. every tracked assignee

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

28 26th percentile higher than 26% 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 · 2016–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Ludwig Ehrhardt GmbH patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	2	40.0%
2018	1	20.0%
2021	1	20.0%
2025partial year	1	20.0%

Which technologies does Ludwig Ehrhardt GmbH patent most?

B25B - Tools OR Bench Devices NOT Otherwise Provided FOR, FOR Fastening, Connecting, Disengaging OR Holding 3

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 2

B23B - TURNING; Boring 1

F15B - Systems Acting BY Means OF Fluids IN GENERAL; Fluid-pressure Actuators, e.g. SERVOMOTORS; Details OF Fluid-pressure Systems, NOT Otherwise Provided FOR 1

F16B - Devices FOR Fastening OR Securing Constructional Elements OR Machine Parts Together, e.g. Nails, Bolts, Circlips, Clamps, Clips OR WEDGES; Joints OR Jointing 1

H02P - Control OR Regulation OF Electric Motors, Electric Generators OR Dynamo-electric CONVERTERS; Controlling Transformers, Reactors OR Choke Coils 1

Top 6 of 6 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

Ludwig Ehrhardt GmbH's patent record in context - here's where to go next.

Ludwig Ehrhardt GmbH's lead technology class is B25B (Tools OR Bench Devices NOT Otherwise Provided FOR, FOR Fastening, Connecting, Disengaging OR Holding), 60% of its portfolio - see every assignee active in that class. Explore B25B
Ranked #48,465 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Ludwig Ehrhardt GmbH against Los Angeles Biomedical Research Institute, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 28.2/100 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.