Where does Ecole Centrale DE Marseille rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Ecole Centrale DE Marseille ranks #16,757 of 50,000 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does Ecole Centrale DE Marseille hold?

Ecole Centrale DE Marseille holds 17 US utility patents granted between 2019 and 2025, spanning 28 technology areas.

What is Ecole Centrale DE Marseille's Innovation Score?

Ecole Centrale DE Marseille has an Innovation Score of 44.6 out of 100 (top 25% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Ecole Centrale DE Marseille focus on?

Ecole Centrale DE Marseille's top technology area is G02B (OPTICAL ELEMENTS, SYSTEMS OR APPARATUS) with 4 patents. Grants appear in 28 CPC subclasses total.

Is Ecole Centrale DE Marseille's patent grant rate increasing or decreasing?

Ecole Centrale DE Marseille's recent grant velocity is +200% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Ecole Centrale DE Marseille's patents?

Ecole Centrale DE Marseille's patents average 15.5 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 Ecole Centrale DE Marseille 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

Ecole Centrale DE Marseille

USPTO PatentsView assignee record - 17 granted patents across 28 technology areas, recorded in grant years 2019–2025. 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: G02B (OPTICAL ELEMENTS, SYSTEMS OR APPARATUS).

Compiled by PlainPatent · May 15, 2026

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Ecole ranks #16,757 of 50,000 tracked US assignees by granted-patent volume, with 17 patents across 28 technology areas.

#16,757
of 50,000 US assignees by volume: Top 25%
by Innovation Score (44.6/100): 15.5
avg claims per patent: +200%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R16757 · Foreign Corporation #16,757 · 17 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 17 grants
MID-PACK #16,757/50,000
PHOTO-FINISH Dynabook
CPC-FOCUS G02B · 28 areas
INNOV-PAR 44.6/100
CLAIMS-RICH 15.5 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +200% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Dynabook 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.

Qualcomm Incorporated · highest

85
Ecole Centrale DE Ma… · this assignee

45
3D Lighting Innovati… · lowest

7

What this shows Ecole Centrale DE Marseille stamps GRANTS-MICRO, MID-PACK, PHOTO-FINISH, CPC-FOCUS, INNOV-PAR, CLAIMS-RICH, TYPE-FRNCORP, VEL-SURGE, BOOK-FULL. Volume places it #16,757 of 50,000; Innovation Score 44.6/100 sits in the top 25% of the PatentsView-derived corpus. Closest grant-volume peer on this plate is Dynabook Inc. (±0 grants).

Portfolio overview

Ecole Centrale DE Marseille has been granted 17 US utility patents between 2019 and 2025, placing Ecole Centrale DE Marseille at #16,757 of 50,000 across all assignees tracked by PlainPatent. This portfolio spans 28 distinct Cooperative Patent Classification (CPC) subclasses, averaging 15.5 claims per patent with primary concentration in G02B (OPTICAL ELEMENTS, SYSTEMS OR APPARATUS). As a Foreign Corporation, Ecole Centrale DE Marseille is one of the more focused assignees in the PatentsView dataset. By volume, Ecole sits between Dynabook Inc. (17 patents, rank #16,752) and EMAG Holding Gmbh (17 patents, rank #16,760) - the closest US assignees by grant volume. The composite Innovation Score of 44.6/100 blends portfolio volume, grant velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Grant cadence records the difference between two grant-year windows. Between 2020 and 2024 the company received 12 grants, compared with 4 in the 2015–2019 window, a +200% shift in five-year grant velocity. Both windows cover five complete grant years; the latest PatentsView year is a partial release and is excluded from this comparison, though it still appears in the yearly table and chart below. Grant timing can lag the related application by years, so this comparison does not establish current R&D spending, strategic intent, or a company’s application activity. The Foreign Corporation classification provides context for the assignee record, not a conclusion about its business strategy.

Claim depth and technology breadth describe this aggregate record. Ecole Centrale DE Marseille's 15.5 average claims per patent is an average count, not a measure of claim scope, legal strength, enforceability, or design-around risk. The record spans 28 CPC subclasses. Combined with portfolio volume, these figures let readers compare the documented grant records of assignees in similar technology classes.

Dynabook

17
E-circuit Motors

17
E-makeco

17
ECO Electrical Sy…

17
Edgecast Networks

17
Egypt Nanotechnol…

17
Elbit Systems Ele…

17
EMAG Holding

17
Ecole Centrale DE… ◀

17

What this shows Ecole holds 17 patents at rank #16,756, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Ecole

By rank, the assignees closest to #16,756 in granted patent volume.

Leaders in G02B (Optical Elements)

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

Ecole's Innovation Score vs. every tracked assignee

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

45 Top 25% higher than 75% 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 · 2019–2025

Grants by year

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

View data table

Ecole Centrale DE Marseille patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2019	4	23.5%
2020	4	23.5%
2022	4	23.5%
2023	1	5.9%
2024	3	17.6%
2025partial year	1	5.9%

Which technologies does Ecole Centrale DE Marseille patent most?

G02B - OPTICAL ELEMENTS, SYSTEMS OR APPARATUS 4

G01R - MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 3

A61B - DIAGNOSIS; SURGERY; IDENTIFICATION 3

G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 3

B42D - BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS 1

C23C - COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL 1

G01V - GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS 1

E02D - FOUNDATIONS; EXCAVATIONS; EMBANKMENTS ; UNDERGROUND OR UNDERWATER STRUCTURES 1

E04H - BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL 1

H02J - CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY 1

H01Q - ANTENNAS, i.e. RADIO AERIALS 1

H10F - INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION 1

C12N - MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA 1

C11B - PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES 1

C12P - FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE 1

Top 15 of 28 technology areas

Where it ranks

Overall rank by patents

#16,757

of 50,000 tracked assignees

Innovation Score

44.6 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

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.