Where does National Oilwell Varco Norway AS rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), National Oilwell Varco Norway AS ranks #6,570 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 National Oilwell Varco Norway AS hold?

National Oilwell Varco Norway AS holds 51 US utility patents granted between 2015 and 2025, spanning 37 technology areas.

What is National Oilwell Varco Norway AS's Innovation Score?

National Oilwell Varco Norway AS has an Innovation Score of 49.9 out of 100 (top 14% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is National Oilwell Varco Norway AS's patent grant rate increasing or decreasing?

National Oilwell Varco Norway AS's recent grant velocity is -15% 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 National Oilwell Varco Norway AS's patents?

National Oilwell Varco Norway AS's patents average 18.2 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 National Oilwell Varco Norway AS 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

National Oilwell Varco Norway AS

Q: What technology areas does National Oilwell Varco Norway AS focus on?

National Oilwell Varco Norway AS'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 30 patents. Grants appear in 37 CPC subclasses total.

USPTO PatentsView assignee record - 51 granted patents across 37 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: 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, National ranks #6,570 of 49,997 tracked US assignees by granted-patent volume, with 51 patents across 37 technology areas.

#6,570
of 49,997 US assignees by volume: Top 14%
by Innovation Score (49.9/100): 18.2
avg claims per patent: -15%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R6570 · Foreign Corporation #6,570 · 51 grants

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

GRANTS-SMALL 51 grants
UPPER-Q #6,570/49,997
PHOTO-FINISH Mississippi State…
CPC-FOCUS E21B · 37 areas
INNOV-PAR 49.9/100
CLAIMS-RICH 18.2 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -15% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Mississippi State University (±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
Cognizant Technology… · near

50
Dunlop Sports · near

50
Hunter Industries · near

50
National Oilwell… · this assignee

50
Semikron Elektronik… · near

50
3D Lighting… · lowest

7

What this shows National's Innovation Score is 49.9/100 (top 14% 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 National's grants concentrate

National Oilwell Varco Norway AS is a focused PatentsView assignee: 37 CPC subclasses with 58.8% 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 2019 (10 grants) versus a trough of 1 in 2024. By volume, National sits between Mississippi State University and Orion Energy Systems, Inc..

National's three-year grant acceleration

From 2019–2021 to 2022–2024, National Oilwell Varco Norway AS moved from 21 to 12 grants (0.57x the prior three-year total, a multiple, not a CAGR). See the growth leaderboard.

Mississippi State…

51
Neopost

51
Nissin Foods Hold…

51
Nantbio

51
Nokia Solutions a…

51
Nokomis

51
Optical Logic

51
Orion Energy Syst…

51
National Oilwell… ◀

51

What this shows National holds 51 patents at rank #6,572, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near National

By rank, the assignees closest to #6,572 in granted patent volume.

Leaders in E21B (Earth OR Rock Drilling)

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

Assignees with similar portfolio profiles

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

Similar innovation score

Nearest assignees by Innovation Score (50 here).

Cognizant Technology Solutions India PVT. Ltd. 50 Semikron Elektronik GMBH & Co. KG 50 Hunter Industries, Inc. 50 Dunlop Sports Co., Ltd. 50

Similar claim depth

Nearest assignees by average claims per patent (18.2 here).

Olympus Scientific Solutions Americas Corp. 18.2 avg Clean Power Research, L.L.C. 18.2 avg Fidelity Information Services, LLC 18.2 avg Invista North America S.a.r.l. 18.2 avg

National's Innovation Score vs. every tracked assignee

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

50 Top 14% higher than 86% 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

National Oilwell Varco Norway AS patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	4	7.8%
2016	6	11.8%
2017	4	7.8%
2018	3	5.9%
2019	10	19.6%
2020	9	17.6%
2021	2	3.9%
2022	9	17.6%
2023	2	3.9%
2024	1	2.0%
2025partial year	1	2.0%

Which technologies does National Oilwell Varco Norway AS patent most?

E21B - Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells 30

B66C - CRANES; Load-engaging Elements OR Devices FOR Cranes, Capstans, Winches, OR Tackles 14

B66D - CAPSTANS; WINCHES; Tackles, e.g. Pulley BLOCKS; Hoists 12

B63B - Ships OR Other Waterborne VESSELS; Equipment FOR Shipping 11

F15B - Systems Acting BY Means OF Fluids IN GENERAL; Fluid-pressure Actuators, e.g. SERVOMOTORS; Details OF Fluid-pressure Systems, NOT Otherwise Provided FOR 4

G06F - Electric Digital Data Processing 4

Y10T - Technical Subjects Covered BY Former US Classification 3

F04B - Positive-displacement Machines FOR LIQUIDS; Pumps 3

F16H - Gearing 2

G06V - Image OR Video Recognition OR Understanding 2

H04N - Pictorial Communication, e.g. Television 2

F16P - Safety Devices IN GENERAL; ; Safety Devices FOR Presses 2

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

F03D - Wind Motors 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

Top 15 of 37 technology areas

Where it ranks

Overall rank by patents

#6,570

of 49,997 tracked assignees

Innovation Score

49.9 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

National Oilwell Varco Norway AS's patent record in context - here's where to go next.

National Oilwell Varco Norway AS'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), 58.8% of its portfolio - see every assignee active in that class. Explore E21B
Ranked #6,570 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare National Oilwell Varco Norway AS against Mississippi State University, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 49.9/100 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.