Where does Keystone Powdered Metal Company rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Keystone Powdered Metal Company ranks #15,408 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 Keystone Powdered Metal Company hold?

Keystone Powdered Metal Company holds 19 US utility patents granted between 2019 and 2025, spanning 8 technology areas.

What is Keystone Powdered Metal Company's Innovation Score?

Keystone Powdered Metal Company has an Innovation Score of 36.7 out of 100 (top 46% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Keystone Powdered Metal Company's patent grant rate increasing or decreasing?

Keystone Powdered Metal Company's recent grant velocity is +550% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Keystone Powdered Metal Company's patents?

Keystone Powdered Metal Company's patents average 14.6 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 Keystone Powdered Metal Company 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 US Corporation

Keystone Powdered Metal Company

Q: What technology areas does Keystone Powdered Metal Company focus on?

Keystone Powdered Metal Company's top technology area is B22F (Working Metallic POWDER; Manufacture OF Articles From Metallic POWDER; Making Metallic Powder ; Apparatus OR Devices Specially Adapted FOR Metallic Powder) with 15 patents, ranking #94 of 926 assignees active in that subclass. Grants appear in 8 CPC subclasses total.

USPTO PatentsView assignee record - 19 granted patents across 8 technology areas, recorded in grant years 2019–2025. 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: B22F (Working Metallic POWDER; Manufacture OF Articles From Metallic POWDER; Making Metallic Powder ; Apparatus OR Devices Specially Adapted FOR Metallic Powder).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Keystone ranks #15,408 of 49,997 tracked US assignees by granted-patent volume, with 19 patents across 8 technology areas.

#15,408
of 49,997 US assignees by volume: Top 46%
by Innovation Score (36.7/100): 14.6
avg claims per patent: +550%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R15408 · US Corporation #15,408 · 19 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-RICH · TYPE-USCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 19 grants
MID-PACK #15,408/49,997
PHOTO-FINISH Kai Concepts
CPC-NARROW B22F · 8 areas
INNOV-THIN 36.7/100
CLAIMS-RICH 14.6 claims/avg
TYPE-USCORP US Corporation
VEL-SURGE +550% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Kai Concepts, LLC (±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 Keystone’s 36.7 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 10.3 pts (28%) Velocity 7.6 pts (21%) Breadth 10.0 pts (27%) Claim depth 8.7 pts (24%)

Qualcomm Incorporated · highest

85
Keystone Powdered… · this assignee

37
3D Lighting… · lowest

7

What this shows Keystone's Innovation Score is 36.7/100 (top 46% 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 Keystone?

Each dot is one of Keystone’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). Keystone’s own 14.6 claims/patent is ABOVE the 13.5 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Keystone's grants concentrate

Keystone Powdered Metal Company is a focused PatentsView assignee: 8 CPC subclasses with 78.9% of grants classified under B22F (Working Metallic POWDER; Manufacture OF Articles From Metallic POWDER; Making Metallic Powder ; Apparatus OR Devices Specially Adapted FOR Metallic Powder). Peak complete grant year is 2021 (5 grants) versus a trough of 2 in 2019. By volume, Keystone sits between Kai Concepts, LLC and Kongsberg Maritime AS.

Keystone's three-year grant acceleration

Keystone Powdered Metal Company shows 8 grants in 2022–2024 against only 7 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.

Kai Concepts

19
Kalray

19
Kapa Biosystems

19
Kennedy Krieger I…

19
King Abdullah Cit…

19
Knappco

19
Koha

19
Kongsberg Maritim…

19
Keystone Powdered… ◀

19

What this shows Keystone holds 19 patents at rank #15,410, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Keystone

By rank, the assignees closest to #15,410 in granted patent volume.

Leaders in B22F (Working Metallic Powder)

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

Keystone's Innovation Score vs. every tracked assignee

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

37 Top 46% higher than 54% 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 · 2019–2025

Grants by year

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

View data table

Keystone Powdered Metal Company patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2019	2	10.5%
2021	5	26.3%
2023	3	15.8%
2024	5	26.3%
2025partial year	4	21.1%

Which technologies does Keystone Powdered Metal Company patent most?

B22F - Working Metallic POWDER; Manufacture OF Articles From Metallic POWDER; Making Metallic Powder ; Apparatus OR Devices Specially Adapted FOR Metallic Powder 15

C22C - Alloys 13

F16H - Gearing 9

F16D - Couplings FOR Transmitting ROTATION; CLUTCHES; Brakes 6

B23K - Soldering OR UNSOLDERING; WELDING; Cladding OR Plating BY Soldering OR WELDING; Cutting BY Applying Heat Locally, e.g. Flame CUTTING; Working BY Laser Beam 2

B33Y - Additive Manufacturing, i.e. Manufacturing OF Three-dimensional [3-D] Objects BY Additive Deposition, Additive Agglomeration OR Additive Layering, e.g. BY 3-D Printing, Stereolithography OR Selective Laser Sintering 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

C23C - Coating Metallic MATERIAL; Coating Material With Metallic MATERIAL; Surface Treatment OF Metallic Material BY Diffusion Into THE Surface, BY Chemical Conversion OR SUBSTITUTION; Coating BY Vacuum Evaporation, BY Sputtering, BY ION Implantation OR BY Chemical Vapour Deposition, IN General 1

Top 8 of 8 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

Keystone Powdered Metal Company's patent record in context - here's where to go next.

Keystone Powdered Metal Company's lead technology class is B22F (Working Metallic POWDER; Manufacture OF Articles From Metallic POWDER; Making Metallic Powder ; Apparatus OR Devices Specially Adapted FOR Metallic Powder), 78.9% of its portfolio - see every assignee active in that class. Explore B22F
Ranked #15,408 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Keystone Powdered Metal Company against Kai Concepts, LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 36.7/100 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.