Where does Welltec Oilfield Solutions AG rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Welltec Oilfield Solutions AG ranks #5,489 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 Welltec Oilfield Solutions AG hold?

Welltec Oilfield Solutions AG holds 63 US utility patents granted between 2018 and 2024, spanning 9 technology areas.

What is Welltec Oilfield Solutions AG's Innovation Score?

Welltec Oilfield Solutions AG has an Innovation Score of 38.0 out of 100 (top 42% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Welltec Oilfield Solutions AG's patent grant rate increasing or decreasing?

Welltec Oilfield Solutions AG's recent grant velocity is +132% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Welltec Oilfield Solutions AG's patents?

Welltec Oilfield Solutions AG's patents average 18.1 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 Welltec Oilfield Solutions 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

Welltec Oilfield Solutions AG

Q: What technology areas does Welltec Oilfield Solutions AG focus on?

Welltec Oilfield Solutions AG's top technology area is E21B (Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells) with 63 patents, ranking #52 of 1,363 assignees active in that subclass. Grants appear in 9 CPC subclasses total.

USPTO PatentsView assignee record - 63 granted patents across 9 technology areas, recorded in grant years 2018–2024. 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: E21B (Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Welltec ranks #5,489 of 49,997 tracked US assignees by granted-patent volume, with 63 patents across 9 technology areas.

#5,489
of 49,997 US assignees by volume: Top 42%
by Innovation Score (38.0/100): 18.1
avg claims per patent: +132%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R5489 · Foreign Corporation #5,489 · 63 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-RICH · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-SMALL 63 grants
UPPER-Q #5,489/49,997
PHOTO-FINISH Valeo Japan
CPC-NARROW E21B · 9 areas
INNOV-THIN 38.0/100
CLAIMS-RICH 18.1 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +132% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Valeo Japan 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.

How Welltec’s 38.0 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 14.4 pts (38%) Velocity 2.1 pts (6%) Breadth 10.6 pts (28%) Claim depth 10.9 pts (29%)

Qualcomm Incorporated · highest

85
Corner Star · near

38
Puff · near

38
Tokyo Parts Industrial · near

38
Travel Caddy · near

38
Welltec Oilfield… · this assignee

38
3D Lighting… · lowest

7

What this shows Welltec's Innovation Score is 38.0/100 (top 42% 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 Welltec?

Each dot is one of Welltec’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). Welltec’s own 18.1 claims/patent is ABOVE the 11.1 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Welltec's grants concentrate

Welltec Oilfield Solutions AG is a focused PatentsView assignee: 9 CPC subclasses with 100% of grants classified under E21B (Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells). Peak complete grant year is 2020 (19 grants) versus a trough of 1 in 2018. By volume, Welltec sits between Varian Medical Systems Particle Therapy GMBH & Co. KG and Atrium Medical Corporation.

Welltec's three-year grant acceleration

From 2019–2021 to 2022–2024, Welltec Oilfield Solutions AG moved from 47 to 15 grants (0.32x the prior three-year total, a multiple, not a CAGR). See the growth leaderboard.

Varian Medical Sy…

63
Valeo Japan

63
Virtual Hold Tech…

63
Vitesco USA

63
Yangzhou Universi…

63
Zhengzhou Yunhai…

63
Welltec Oilfield… ◀

63
Abbyy Production

62
Atrium Medical

62

What this shows Welltec holds 63 patents at rank #5,489, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Welltec

By rank, the assignees closest to #5,489 in granted patent volume.

Leaders in E21B (Earth OR Rock Drilling)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Welltec, neither rank-band nor same-CPC leaders (those blocks stay above). In E21B (Earth OR Rock Drilling), Welltec ranks #52 of 1,363 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (38 here).

Puff Corporation 38 Corner Star Limited 38 Tokyo Parts Industrial Co., Ltd. 38 Travel Caddy, Inc. 38

Similar claim depth

Nearest assignees by average claims per patent (18.1 here).

Alpla Werke Alwin Lehner GmbH & Co. KG 18.1 avg Vacuumschmelze GmbH & Co. KG 18.1 avg Zscaler, Inc. 18.1 avg University OF Maryland, College Park 18.1 avg

Welltec's Innovation Score vs. every tracked assignee

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

38 Top 42% higher than 58% 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 · 2018–2024

Grants by year

Teal-shaded recent years (2020–present) versus the 2018–2019 baseline. Full figures in the table below.

View data table

Welltec Oilfield Solutions AG patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2018	1	1.6%
2019	18	28.6%
2020	19	30.2%
2021	10	15.9%
2022	7	11.1%
2023	7	11.1%
2024	1	1.6%

Which technologies does Welltec Oilfield Solutions AG patent most?

E21B - Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells 63

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

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

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 2

F04B - Positive-displacement Machines FOR LIQUIDS; Pumps 1

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 1

F24T - Geothermal COLLECTORS; Geothermal Systems 1

F24F - AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR Currents FOR Screening 1

C21D - Modifying THE Physical Structure OF Ferrous METALS; General Devices FOR Heat Treatment OF Ferrous OR Non-ferrous Metals OR ALLOYS; Making Metal Malleable, e.g. BY Decarburisation OR Tempering 1

Top 9 of 9 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

Welltec Oilfield Solutions AG's patent record in context - here's where to go next.

Welltec Oilfield Solutions AG's lead technology class is E21B (Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells), 100% of its portfolio - see every assignee active in that class. Explore E21B
Ranked #5,489 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Welltec Oilfield Solutions AG against Varian Medical Systems Particle Therapy GMBH & Co. KG, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 38.0/100 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.