Where does Paul Wurth S.A. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Paul Wurth S.A. ranks #5,620 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 Paul Wurth S.A. hold?

Paul Wurth S.A. holds 61 US utility patents granted between 2015 and 2025, spanning 29 technology areas.

What is Paul Wurth S.A.'s Innovation Score?

Paul Wurth S.A. has an Innovation Score of 48.5 out of 100 (top 16% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Paul Wurth S.A.'s patent grant rate increasing or decreasing?

Paul Wurth S.A.'s recent grant velocity is -37% 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 Paul Wurth S.A.'s patents?

Paul Wurth S.A.'s patents average 14.3 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 Paul Wurth S.A. 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

Paul Wurth S.A.

Q: What technology areas does Paul Wurth S.A. focus on?

Paul Wurth S.A.'s top technology area is F27D (Details OR Accessories OF Furnaces, Kilns, Ovens OR Retorts, IN SO FAR AS They ARE OF Kinds Occurring IN More Than ONE Kind OF Furnace) with 47 patents, ranking #3 of 350 assignees active in that subclass. Grants appear in 29 CPC subclasses total.

USPTO PatentsView assignee record - 61 granted patents across 29 technology areas, recorded in grant years 2015–2025. 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: F27D (Details OR Accessories OF Furnaces, Kilns, Ovens OR Retorts, IN SO FAR AS They ARE OF Kinds Occurring IN More Than ONE Kind OF Furnace).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Paul ranks #5,620 of 49,997 tracked US assignees by granted-patent volume, with 61 patents across 29 technology areas.

#5,620
of 49,997 US assignees by volume: Top 16%
by Innovation Score (48.5/100): 14.3
avg claims per patent: -37%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R5620 · Foreign Corporation #5,620 · 61 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-FRNCORP · VEL-DOWN · BOOK-FULL

GRANTS-SMALL 61 grants
UPPER-Q #5,620/49,997
PHOTO-FINISH NeoMed
CPC-FOCUS F27D · 29 areas
INNOV-PAR 48.5/100
CLAIMS-RICH 14.3 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -37% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: NeoMed, 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 Paul’s 48.5 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 14.3 pts (29%) Velocity 6.7 pts (14%) Breadth 19.0 pts (39%) Claim depth 8.5 pts (18%)

Qualcomm Incorporated · highest

85
Menicon · near

49
Mitsubishi Heavy… · near

49
Paul Wurth · this assignee

49
Salk Institute for… · near

49
Sekisui Plastics · near

49
3D Lighting… · lowest

7

What this shows Paul's Innovation Score is 48.5/100 (top 16% 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 Paul?

Each dot is one of Paul’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). Paul’s own 14.3 claims/patent is ABOVE the 11.0 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Paul's grants concentrate

Paul Wurth S.A. is a focused PatentsView assignee: 29 CPC subclasses with 77% of grants classified under F27D (Details OR Accessories OF Furnaces, Kilns, Ovens OR Retorts, IN SO FAR AS They ARE OF Kinds Occurring IN More Than ONE Kind OF Furnace). Peak complete grant year is 2015 (15 grants) versus a trough of 2 in 2024. By volume, Paul sits between Noxell Corporation and QuantumScape Corporation.

Paul's three-year grant acceleration

Paul Wurth S.A. shows 13 grants in 2022–2024 against only 13 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.

Noxell

61
Neomed

61
Noritake

61
OP Solutions

61
Pruitt Tool & Sup…

61
Position Imaging

61
Qingdao Ecopure F…

61
Quantumscape

61
Paul Wurth ◀

61

What this shows Paul holds 61 patents at rank #5,618, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Paul

By rank, the assignees closest to #5,618 in granted patent volume.

Leaders in F27D (Details OR Accessories OF Furnaces)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Paul, neither rank-band nor same-CPC leaders (those blocks stay above). In F27D (Details OR Accessories OF Furnaces), Paul ranks #3 of 350 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (49 here).

Menicon Co., Ltd. 49 Sekisui Plastics Co., Ltd. 49 Salk Institute for Biological Studies 49 Mitsubishi Heavy Industries Engineering, Ltd. 49

Similar claim depth

Nearest assignees by average claims per patent (14.3 here).

Agfa-Gevaert NV 14.3 avg Stepan Company 14.3 avg Medipal Holdings Corporation 14.3 avg AutoStore Technology AS 14.3 avg

Paul's Innovation Score vs. every tracked assignee

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

49 Top 16% higher than 84% 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 · 2015–2025

Grants by year

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

View data table

Paul Wurth S.A. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	15	24.6%
2016	4	6.6%
2017	5	8.2%
2018	7	11.5%
2019	4	6.6%
2020	5	8.2%
2021	4	6.6%
2022	7	11.5%
2023	4	6.6%
2024	2	3.3%
2025partial year	4	6.6%

Which technologies does Paul Wurth S.A. patent most?

F27D - Details OR Accessories OF Furnaces, Kilns, Ovens OR Retorts, IN SO FAR AS They ARE OF Kinds Occurring IN More Than ONE Kind OF Furnace 47

C21B - Manufacture OF Iron OR Steel 45

F27B - Furnaces, Kilns, Ovens OR Retorts IN GENERAL; Open Sintering OR Like Apparatus 42

C21C - Processing OF Pig-iron, e.g. Refining, Manufacture OF Wrought-iron OR STEEL; Treatment IN Molten State OF Ferrous Alloys 9

C22B - Production AND Refining OF Metals ; Pretreatment OF RAW Materials 6

B65G - Transport OR Storage Devices, e.g. Conveyors FOR Loading OR Tipping, Shop Conveyor Systems OR Pneumatic Tube Conveyors 5

B02C - Crushing, Pulverising, OR Disintegrating IN GENERAL; Milling Grain 4

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 4

C10B - Destructive Distillation OF Carbonaceous Materials FOR Production OF GAS, Coke, TAR, OR Similar Materials 4

C04B - Lime, MAGNESIA; SLAG; CEMENTS; Compositions Thereof, e.g. Mortars, Concrete OR Like Building MATERIALS; Artificial Stone ; Ceramics ; REFRACTORIES; Treatment OF Natural Stone 3

F26B - Drying Solid Materials OR Objects BY Removing Liquid Therefrom 2

F16K - VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating 2

B22D - Casting OF METALS; Casting OF Other Substances BY THE Same Processes OR Devices 2

F23M - Casings, Linings, Walls OR Doors Specially Adapted FOR Combustion Chambers, e.g. FIREBRIDGES; Devices FOR Deflecting AIR, Flames OR Combustion Products IN Combustion CHAMBERS; Safety Arrangements Specially Adapted FOR Combustion APPARATUS; Details OF Combustion Chambers, NOT Otherwise Provided FOR 2

Y02W - Climate Change Mitigation Technologies Related TO Wastewater Treatment OR Waste Management 2

Top 15 of 29 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

Paul Wurth S.A.'s patent record in context - here's where to go next.

Paul Wurth S.A.'s lead technology class is F27D (Details OR Accessories OF Furnaces, Kilns, Ovens OR Retorts, IN SO FAR AS They ARE OF Kinds Occurring IN More Than ONE Kind OF Furnace), 77% of its portfolio - see every assignee active in that class. Explore F27D
Ranked #5,620 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Paul Wurth S.A. against Noxell Corporation, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 48.5/100 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.