Where does Fos4x Gmbh rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Fos4x Gmbh ranks #18,632 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 Fos4x Gmbh hold?

Fos4x Gmbh holds 15 US utility patents granted between 2019 and 2022, spanning 13 technology areas.

What is Fos4x Gmbh's Innovation Score?

Fos4x Gmbh has an Innovation Score of 34.3 out of 100 (top 53% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Fos4x Gmbh's patent grant rate increasing or decreasing?

Fos4x Gmbh's recent grant velocity is +1300% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Fos4x Gmbh's patents?

Fos4x Gmbh's patents average 14.5 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 Fos4x 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

Fos4x Gmbh

Q: What technology areas does Fos4x Gmbh focus on?

Fos4x Gmbh's top technology area is Y02E (REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION) with 11 patents. Grants appear in 13 CPC subclasses total.

USPTO PatentsView assignee record - 15 granted patents across 13 technology areas, recorded in grant years 2019–2022. 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: Y02E (REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION).

Compiled by PlainPatent · May 15, 2026

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Fos4x ranks #18,632 of 50,000 tracked US assignees by granted-patent volume, with 15 patents across 13 technology areas.

#18,632
of 50,000 US assignees by volume: Top 53%
by Innovation Score (34.3/100): 14.5
avg claims per patent: +1300%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R18632 · Foreign Corporation #18,632 · 15 grants

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

GRANTS-MICRO 15 grants
MID-PACK #18,632/50,000
PHOTO-FINISH FIDELIX
CPC-FOCUS Y02E · 13 areas
INNOV-THIN 34.3/100
CLAIMS-RICH 14.5 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +1300% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Fidelix Co., Ltd. (±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
Fos4x · this assignee

34
3D Lighting Innovati… · lowest

7

What this shows Fos4x Gmbh stamps GRANTS-MICRO, MID-PACK, PHOTO-FINISH, CPC-FOCUS, INNOV-THIN, CLAIMS-RICH, TYPE-FRNCORP, VEL-SURGE, BOOK-FULL. Volume places it #18,632 of 50,000; Innovation Score 34.3/100 sits in the top 53% of the PatentsView-derived corpus. Closest grant-volume peer on this plate is Fidelix Co., Ltd. (±0 grants).

Portfolio overview

Fos4x Gmbh has been granted 15 US utility patents between 2019 and 2022, placing Fos4x Gmbh at #18,632 of 50,000 across all assignees tracked by PlainPatent. This portfolio spans 13 distinct Cooperative Patent Classification (CPC) subclasses, averaging 14.5 claims per patent with primary concentration in Y02E (REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION). As a Foreign Corporation, Fos4x Gmbh is one of the more focused assignees in the PatentsView dataset. By volume, Fos4x sits between Fidelix Co., Ltd. (15 patents, rank #18,614) and Franco Manufacturing Co. Inc. (15 patents, rank #18,622) - the closest US assignees by grant volume. The composite Innovation Score of 34.3/100 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 14 grants, compared with 1 in the 2015–2019 window, a +1300% 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. Fos4x Gmbh's 14.5 average claims per patent is an average count, not a measure of claim scope, legal strength, enforceability, or design-around risk. The record spans 13 CPC subclasses. Combined with portfolio volume, these figures let readers compare the documented grant records of assignees in similar technology classes.

Fidelix

15
First Institute O…

15
Flaskworks

15
Focus-ebeam Techn…

15
Fosber S P A

15
Foundation Brakes…

15
Foundation FOR Bi…

15
Franco Manufactur…

15
Fos4x ◀

15

What this shows Fos4x holds 15 patents at rank #18,618, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Fos4x

By rank, the assignees closest to #18,618 in granted patent volume.

Leaders in Y02E (Reduction OF Greenhouse GAS [GHG] Emissions)

Other assignees with the most granted patents in Fos4x's primary technology class.

Fos4x's Innovation Score vs. every tracked assignee

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

34 Top 53% higher than 47% 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 · 2019–2022

Grants by year

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

View data table

Fos4x Gmbh patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2019	1	6.7%
2020	7	46.7%
2021	2	13.3%
2022	5	33.3%

Which technologies does Fos4x Gmbh patent most?

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 11

F03D - WIND MOTORS 9

F05B - INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G 8

G01B - MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS 4

G02B - OPTICAL ELEMENTS, SYSTEMS OR APPARATUS 3

G01L - MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE 3

G01H - MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES 2

G01M - TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR 2

G01D - MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR 2

G01P - MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT 2

G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 1

G01J - MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY 1

F05D - INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS 1

Top 13 of 13 technology areas

Where it ranks

Overall rank by patents

#18,632

of 50,000 tracked assignees

Innovation Score

34.3 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.