Where does Silverwell Technology Limited rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Silverwell Technology Limited ranks #27,427 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 Silverwell Technology Limited hold?

Silverwell Technology Limited holds 10 US utility patents granted between 2021 and 2025, spanning 6 technology areas.

What is Silverwell Technology Limited's Innovation Score?

Silverwell Technology Limited has an Innovation Score of 45.9 out of 100 (top 22% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Silverwell Technology Limited's patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Silverwell Technology Limited.

What does claim depth mean for Silverwell Technology Limited's patents?

Silverwell Technology Limited's patents average 15.0 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 Silverwell Technology Limited 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

Silverwell Technology Limited

Q: What technology areas does Silverwell Technology Limited focus on?

Silverwell Technology Limited'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 10 patents, ranking #372 of 1,363 assignees active in that subclass. Grants appear in 6 CPC subclasses total.

USPTO PatentsView assignee record - 10 granted patents across 6 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, Silverwell ranks #27,427 of 49,997 tracked US assignees by granted-patent volume, with 10 patents across 6 technology areas.

#27,427
of 49,997 US assignees by volume: Top 22%
by Innovation Score (45.9/100): 15.0
avg claims per patent

USPTO PatentsView assignee plate

Corpus R27427 · Foreign Corporation #27,427 · 10 grants

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

GRANTS-MICRO 10 grants
MID-PACK #27,427/49,997
PHOTO-FINISH Silatronix
CPC-NARROW E21B · 6 areas
INNOV-PAR 45.9/100
CLAIMS-RICH 15.0 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2021–2025 · 5y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Silatronix, 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 Silverwell’s 45.9 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 8.3 pts (18%) Velocity 20.0 pts (43%) Breadth 8.7 pts (19%) Claim depth 9.0 pts (20%)

Qualcomm Incorporated · highest

85
Silverwell Technology · this assignee

46
3D Lighting… · lowest

7

What this shows Silverwell's Innovation Score is 45.9/100 (top 22% 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 Silverwell?

Each dot is one of Silverwell’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). Silverwell’s own 15.0 claims/patent is ABOVE the 12.0 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Silverwell's grants concentrate

Silverwell Technology Limited is a focused PatentsView assignee: 6 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 2022 (5 grants) versus a trough of 1 in 2021. By volume, Silverwell sits between Silatronix, Inc and Siren Care, Inc..

Silverwell's three-year grant acceleration

Silverwell Technology Limited shows 7 grants in 2022–2024 against only 1 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.

Silatronix

10
Silicon Turbine S…

10
Silver Creek Phar…

10
Silverstream B V

10
Simless

10
Simple Wishes

10
Simplec

10
Siren Care

10
Silverwell Techno… ◀

10

What this shows Silverwell holds 10 patents at rank #27,479, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Silverwell

By rank, the assignees closest to #27,479 in granted patent volume.

Leaders in E21B (Earth OR Rock Drilling)

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

Silverwell's Innovation Score vs. every tracked assignee

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

46 Top 22% higher than 78% 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

Silverwell Technology Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2021	1	10.0%
2022	5	50.0%
2023	1	10.0%
2024	1	10.0%
2025partial year	2	20.0%

Which technologies does Silverwell Technology Limited patent most?

E21B - Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells 10

F15B - Systems Acting BY Means OF Fluids IN GENERAL; Fluid-pressure Actuators, e.g. SERVOMOTORS; Details OF Fluid-pressure Systems, NOT Otherwise Provided FOR 1

G01F - Measuring Volume, Volume Flow, Mass Flow OR Liquid LEVEL; Metering BY Volume 1

F04B - Positive-displacement Machines FOR LIQUIDS; Pumps 1

Y10T - Technical Subjects Covered BY Former US Classification 1

F16K - VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating 1

Top 6 of 6 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

Silverwell Technology Limited's patent record in context - here's where to go next.

Silverwell Technology Limited'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 #27,427 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Silverwell Technology Limited against Silatronix, Inc, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 45.9/100 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.