USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Carl Freudenberg KG

USPTO PatentsView assignee record - 287 granted patents across 109 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: F16J (PISTONS ; CYLINDERS; SEALINGS).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

287

Total patents granted

109

CPC technology areas

11.2

Avg claims per patent

+30%

5-year filing velocity

The verdict

Carl holds 287 US patents across 109 technology areas, rank #1,452 of 50,000 tracked assignees.

#1,452
of 50,000 US assignees by volume: Top 5%
by Innovation Score (57.1/100): 11.2
avg claims per patent: +30%
filing velocity, last 5 yrs

Portfolio overview

Carl Freudenberg KG has been granted 287 US utility patents between 2015 and 2025, placing Carl Freudenberg KG at rank #1,452 across all assignees tracked by PlainPatent. This portfolio spans 109 distinct Cooperative Patent Classification (CPC) subclasses, averaging 11.2 claims per patent with primary concentration in F16J (PISTONS ; CYLINDERS; SEALINGS). As a Foreign Corporation, Carl Freudenberg KG is one of the broader-portfolio assignees in the PatentsView dataset. By volume, Carl sits between Milliken & Company (288 patents, rank #1,448) and Kinpo Electronics, Inc. (286 patents, rank #1,456) - the closest US assignees by grant volume. The composite Innovation Score of 57.1/100 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 162 grants, compared with 125 in the 2015–2019 window, a +30% shift in five-year velocity. Steady filing volume suggests sustained innovation without dramatic pivots. 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. Carl Freudenberg KG's 11.2 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a diversified footprint across 100+ CPC subclasses spreads risk across many technology fronts. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Carl Freudenberg KG against peers pursuing similar technology classes.

Milliken &

288
National Institut…

288
Nifco

288
Alnylam Pharmaceu…

287
EMD Millipore

287
Tyco Fire Products

287
Carl Freudenberg… ◀

287
Jiaxing Super Lig…

286
Kinpo

286

What this shows Carl holds 287 patents at rank #1,452, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Carl

By rank, the assignees closest to #1,452 in granted patent volume.

Leaders in F16J (Pistons)

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

Carl's Innovation Score vs. every tracked assignee

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

57 Top 5% higher than 95% 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 · 2015–2025

Grants by year

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

View data table

Carl Freudenberg KG patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	26	9.1%
2016	22	7.7%
2017	26	9.1%
2018	23	8.0%
2019	28	9.8%
2020	25	8.7%
2021	35	12.2%
2022	26	9.1%
2023	25	8.7%
2024	26	9.1%
2025	25	8.7%

Which technologies does Carl Freudenberg KG patent most?

F16J - PISTONS ; CYLINDERS; SEALINGS 57

A47L - DOMESTIC WASHING OR CLEANING ; SUCTION CLEANERS IN GENERAL 51

B01D - SEPARATION 29

H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 21

D04H - MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL ; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION 20

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 20

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 16

F16C - SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS 10

B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 9

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 9

A61L - METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES 8

D01D - MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS 8

B60H - ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES 8

D01F - CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS 7

F16F - SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION 6

Top 15 of 109 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Diversified

Claim Depth Simple

Velocity Growing

Where it ranks

Overall rank by patents

#1,452

Across all tracked assignees

Innovation Score

57.1 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 Carl Freudenberg KG hold?

Carl Freudenberg KG holds 287 US granted patents filed between 2015 and 2025, spanning 109 technology areas.

What is Carl Freudenberg KG's Innovation Score?

Carl Freudenberg KG has an Innovation Score of 57.1 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Carl Freudenberg KG focus on?

Carl Freudenberg KG's top technology area is F16J (PISTONS ; CYLINDERS; SEALINGS) with 57 patents. The company has filed patents in 109 CPC subclasses total.

Is Carl Freudenberg KG's patent filing rate increasing or decreasing?

Carl Freudenberg KG's recent filing velocity is +30% compared to the prior five-year period. The company is maintaining or growing its patent output.

What does claim depth mean for Carl Freudenberg KG's patents?

Carl Freudenberg KG's patents average 11.2 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Carl Freudenberg KG 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

Carl's 287 grants land it in the top 5% 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 - Carl ranks #1,452 of 50,000. Top 50 holders
Most of this portfolio concentrates in F16J - see who else leads that technology area. F16J 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 · 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.