Where does National Deep SEA Center rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), National Deep SEA Center ranks #32,589 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 Deep SEA Center hold?

National Deep SEA Center holds 8 US utility patents granted between 2019 and 2022, spanning 15 technology areas.

What is National Deep SEA Center's Innovation Score?

National Deep SEA Center has an Innovation Score of 46.2 out of 100 (top 21% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does National Deep SEA Center focus on?

National Deep SEA Center's top technology area is G01V (GEOPHYSICS; Gravitational MEASUREMENTS; Detecting Masses OR OBJECTS; Tags) with 4 patents, ranking #230 of 835 assignees active in that subclass. Grants appear in 15 CPC subclasses total.

Is National Deep SEA Center's patent grant rate increasing or decreasing?

National Deep SEA Center's recent grant velocity is +600% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for National Deep SEA Center's patents?

National Deep SEA Center's patents average 8.1 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 National Deep SEA Center 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 Deep SEA Center

USPTO PatentsView assignee record - 8 granted patents across 15 technology areas, recorded in grant years 2019–2022. 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: G01V (GEOPHYSICS; Gravitational MEASUREMENTS; Detecting Masses OR OBJECTS; Tags).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, National ranks #32,589 of 49,997 tracked US assignees by granted-patent volume, with 8 patents across 15 technology areas.

#32,589
of 49,997 US assignees by volume: Top 21%
by Innovation Score (46.2/100): 8.1
avg claims per patent: +600%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R32589 · Foreign Corporation #32,589 · 8 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 8 grants
MID-PACK #32,589/49,997
PHOTO-FINISH Nanoentek
CPC-FOCUS G01V · 15 areas
INNOV-PAR 46.2/100
CLAIMS-PAR 8.1 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +600% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Nanoentek, 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 National’s 46.2 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 7.6 pts (16%) Velocity 20.0 pts (43%) Breadth 13.7 pts (30%) Claim depth 4.9 pts (11%)

Qualcomm Incorporated · highest

85
National Deep SEA… · this assignee

46
3D Lighting… · lowest

7

What this shows National's Innovation Score is 46.2/100 (top 21% 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 National?

Each dot is one of National’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). National’s own 8.1 claims/patent is at or below the 11.6 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where National's grants concentrate

National Deep SEA Center is a focused PatentsView assignee: 15 CPC subclasses with 50% of grants classified under G01V (GEOPHYSICS; Gravitational MEASUREMENTS; Detecting Masses OR OBJECTS; Tags). Peak complete grant year is 2022 (6 grants) versus a trough of 1 in 2019. By volume, National sits between Nanoentek, Inc. and NCX Corporation.

National's three-year grant acceleration

National Deep SEA Center shows 6 grants in 2022–2024 against only 2 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.

Nanoentek

8
Nantoh

8
Nari Technology

8
National Cheng Ku…

8
National Railroad…

8
National Universi…

8
NB Health Laborat…

8
NCX

8
National Deep SEA… ◀

8

What this shows National holds 8 patents at rank #32,568, 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 #32,568 in granted patent volume.

Leaders in G01V (Geophysics)

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

National's Innovation Score vs. every tracked assignee

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

46 Top 21% higher than 79% 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 · 2019–2022

Grants by year

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

View data table

National Deep SEA Center patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2019	1	12.5%
2021	1	12.5%
2022	6	75.0%

Which technologies does National Deep SEA Center patent most?

G01V - GEOPHYSICS; Gravitational MEASUREMENTS; Detecting Masses OR OBJECTS; Tags 4

G01S - Radio DIRECTION-FINDING; Radio NAVIGATION; Determining Distance OR Velocity BY USE OF Radio WAVES; Locating OR Presence-detecting BY USE OF THE Reflection OR Reradiation OF Radio WAVES; Analogous Arrangements Using Other Waves 4

B63B - Ships OR Other Waterborne VESSELS; Equipment FOR Shipping 3

B63G - Offensive OR Defensive Arrangements ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; Aircraft Carriers 3

G05D - Systems FOR Controlling OR Regulating Non-electric Variables 2

G01H - Measurement OF Mechanical Vibrations OR Ultrasonic, Sonic OR Infrasonic Waves 2

G08C - Transmission Systems FOR Measured Values, Control OR Similar Signals 1

H04W - Wireless Communication Networks 1

G01C - Measuring Distances, Levels OR BEARINGS; SURVEYING; NAVIGATION; Gyroscopic INSTRUMENTS; Photogrammetry OR Videogrammetry 1

Y02D - Climate Change Mitigation Technologies IN Information AND Communication Technologies [ICT], I.E. Information AND Communication Technologies Aiming AT THE Reduction OF Their OWN Energy USE 1

H04L - Transmission OF Digital Information, e.g. Telegraphic Communication 1

G06Q - Information AND Communication Technology [ICT] Specially Adapted FOR Administrative, Commercial, Financial, Managerial OR Supervisory PURPOSES; Systems OR Methods Specially Adapted FOR Administrative, Commercial, Financial, Managerial OR Supervisory Purposes, NOT Otherwise Provided FOR 1

G08G - Traffic Control Systems 1

G06N - Computing Arrangements Based ON Specific Computational Models 1

Y02A - Technologies FOR Adaptation TO Climate Change 1

Top 15 of 15 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

National Deep SEA Center's patent record in context - here's where to go next.

National Deep SEA Center's lead technology class is G01V (GEOPHYSICS; Gravitational MEASUREMENTS; Detecting Masses OR OBJECTS; Tags), 50% of its portfolio - see every assignee active in that class. Explore G01V
Ranked #32,589 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare National Deep SEA Center against Nanoentek, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 46.2/100 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.