USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)

Q: Where does Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) ranks #20,448 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

Q: Is Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)'s patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou).

Q: How is the Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) 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 PatentsView assignee record - 14 granted patents across 25 technology areas, recorded in grant years 2021–2025. 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

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Southern ranks #20,448 of 49,997 tracked US assignees by granted-patent volume, with 14 patents across 25 technology areas.

#20,448
of 49,997 US assignees by volume: Top 9%
by Innovation Score (53.5/100): 10.9
avg claims per patent

USPTO PatentsView assignee plate

Corpus R20448 · Foreign Corporation #20,448 · 14 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-MICRO 14 grants
MID-PACK #20,448/49,997
PHOTO-FINISH Smiths Interconnect…
CPC-FOCUS E21B · 25 areas
INNOV-PAR 53.5/100
CLAIMS-PAR 10.9 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2021–2025 · 5y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Smiths Interconnect Americas, 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 Southern’s 53.5 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 9.4 pts (18%) Velocity 20.0 pts (37%) Breadth 17.7 pts (33%) Claim depth 6.5 pts (12%)

Qualcomm Incorporated · highest

85
Southern Marine… · this assignee

54
3D Lighting… · lowest

7

What this shows Southern's Innovation Score is 53.5/100 (top 9% 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 Southern?

Each dot is one of Southern’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). Southern’s own 10.9 claims/patent is at or below the 15.7 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Southern's grants concentrate

Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) is a focused PatentsView assignee: 25 CPC subclasses with 21.4% 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 2023 (7 grants) versus a trough of 2 in 2021. By volume, Southern sits between Smiths Interconnect Americas, Inc. and Spoked Solutions LLC.

Southern's three-year grant acceleration

Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) shows 9 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.

Smiths Interconne…

14
Sociéte anonyme d…

14
Solarwindow

14
Solos Technology

14
Sovereign Peak Ve…

14
Spears Manufactur…

14
Specialty Surgica…

14
Spoked Solutions

14
Southern Marine S… ◀

14

What this shows Southern holds 14 patents at rank #20,456, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Southern

By rank, the assignees closest to #20,456 in granted patent volume.

Leaders in E21B (Earth OR Rock Drilling)

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

Southern's Innovation Score vs. every tracked assignee

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

54 Top 9% higher than 91% 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 · 2021–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2021–2019 baseline. Full figures in the table below.

View data table

Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2021	2	14.3%
2023	7	50.0%
2024	2	14.3%
2025partial year	3	21.4%

Which technologies does Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) patent most?

E21B - Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells 3

C09D - Coating Compositions, e.g. Paints, Varnishes OR LACQUERS; Filling PASTES; Chemical Paint OR INK REMOVERS; INKS; Correcting FLUIDS; WOODSTAINS; Pastes OR Solids FOR Colouring OR PRINTING; USE OF Materials Therefor 2

B63B - Ships OR Other Waterborne VESSELS; Equipment FOR Shipping 2

G01M - Testing Static OR Dynamic Balance OF Machines OR STRUCTURES; Testing OF Structures OR Apparatus, NOT Otherwise Provided FOR 2

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 2

C07D - Heterocyclic Compounds 2

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 1

B08B - Cleaning IN GENERAL; Prevention OF Fouling IN General 1

G01L - Measuring Force, Stress, Torque, Work, Mechanical Power, Mechanical Efficiency, OR Fluid Pressure 1

E02D - FOUNDATIONS; EXCAVATIONS; Embankments ; Underground OR Underwater Structures 1

G01B - Measuring Length, Thickness OR Similar Linear DIMENSIONS; Measuring ANGLES; Measuring AREAS; Measuring Irregularities OF Surfaces OR Contours 1

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

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 1

Y02A - Technologies FOR Adaptation TO Climate Change 1

A23V - Indexing Scheme Relating TO Foods, Foodstuffs OR Non-alcoholic Beverages AND Lactic OR Propionic Acid Bacteria Used IN Foodstuffs OR Food Preparation 1

Top 15 of 25 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

Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)'s patent record in context - here's where to go next.

Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)'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), 21.4% of its portfolio - see every assignee active in that class. Explore E21B
Ranked #20,448 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) against Smiths Interconnect Americas, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 53.5/100 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.