Where does Walter AG rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Walter AG ranks #6,857 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 Walter AG hold?

Walter AG holds 49 US utility patents granted between 2015 and 2025, spanning 23 technology areas.

What is Walter AG's Innovation Score?

Walter AG has an Innovation Score of 50.5 out of 100 (top 13% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Walter AG's patent grant rate increasing or decreasing?

Walter AG's recent grant velocity is -23% 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 Walter AG's patents?

Walter AG's patents average 16.6 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 Walter AG 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

Walter AG

Q: What technology areas does Walter AG focus on?

Walter AG's top technology area is 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) with 26 patents. Grants appear in 23 CPC subclasses total.

USPTO PatentsView assignee record - 49 granted patents across 23 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: 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 Evap).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Walter ranks #6,857 of 49,997 tracked US assignees by granted-patent volume, with 49 patents across 23 technology areas.

#6,857
of 49,997 US assignees by volume: Top 13%
by Innovation Score (50.5/100): 16.6
avg claims per patent: -23%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R6857 · Foreign Corporation #6,857 · 49 grants

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

GRANTS-SMALL 49 grants
UPPER-Q #6,857/49,997
PHOTO-FINISH Ultratech
CPC-FOCUS C23C · 23 areas
INNOV-PAR 50.5/100
CLAIMS-RICH 16.6 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -23% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Ultratech (±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
5 11 · near

50
Alpla Werke Alwin… · near

50
Flamel Ireland · near

50
Voestalpine Stahl · near

50
Walter · this assignee

50
3D Lighting… · lowest

7

What this shows Walter's Innovation Score is 50.5/100 (top 13% 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.

Where Walter's grants concentrate

Walter AG is a focused PatentsView assignee: 23 CPC subclasses with 53.1% of grants classified under 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 Evap). Peak complete grant year is 2016 (7 grants) versus a trough of 2 in 2021. By volume, Walter sits between Ultratech and Yamato Scale Co., Ltd..

Walter's three-year grant acceleration

Walter AG shows 15 grants in 2022–2024 against only 10 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.

Ultratech

49
V-wave

49
Varel Internation…

49
W&H Dentalwerk Bü…

49
Welldoc

49
Xaar Technology

49
Yamazaki Mazak

49
Yamato Scale

49
Walter ◀

49

What this shows Walter holds 49 patents at rank #6,858, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Walter

By rank, the assignees closest to #6,858 in granted patent volume.

Leaders in C23C (Coating Metallic Material)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Walter, neither rank-band nor same-CPC leaders (those blocks stay above).

Similar innovation score

Nearest assignees by Innovation Score (50 here).

Flamel Ireland Limited 50 Voestalpine Stahl GmbH 50 Alpla Werke Alwin Lehner GmbH & Co. KG 50 5.11, Inc. 50

Walter's Innovation Score vs. every tracked assignee

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

50 Top 13% higher than 87% 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

Walter AG patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	4	8.2%
2016	7	14.3%
2017	7	14.3%
2018	3	6.1%
2019	5	10.2%
2020	3	6.1%
2021	2	4.1%
2022	7	14.3%
2023	2	4.1%
2024	6	12.2%
2025partial year	3	6.1%

Which technologies does Walter AG patent most?

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 26

B23B - TURNING; Boring 24

Y10T - Technical Subjects Covered BY Former US Classification 20

B23C - Milling 15

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 3

H01J - Electric Discharge Tubes OR Discharge Lamps 2

B22F - Working Metallic POWDER; Manufacture OF Articles From Metallic POWDER; Making Metallic Powder ; Apparatus OR Devices Specially Adapted FOR Metallic Powder 2

F03D - Wind Motors 2

Y02B - Climate Change Mitigation Technologies Related TO Buildings, e.g. Housing, House Appliances OR Related End-user Applications 2

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 2

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 2

B01D - Separation 2

C30B - Single-crystal Growth ; Unidirectional Solidification OF Eutectic Material OR Unidirectional Demixing OF Eutectoid MATERIAL; Refining BY Zone-melting OF Material ; Production OF A Homogeneous Polycrystalline Material With Defined Structure ; Single Crystals OR Homogeneous Polycrystalline Material WI 1

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 1

G16H - Healthcare Informatics, i.e. Information AND Communication Technology [ICT] Specially Adapted FOR THE Handling OR Processing OF Medical OR Healthcare Data 1

Top 15 of 23 technology areas

Where it ranks

Overall rank by patents

#6,857

of 49,997 tracked assignees

Innovation Score

50.5 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

What to do with this data

Walter AG's patent record in context - here's where to go next.

Walter AG's lead technology class is 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 Evap), 53.1% of its portfolio - see every assignee active in that class. Explore C23C
Ranked #6,857 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Walter AG against Ultratech, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 50.5/100 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.