Where does H.C. Starck Tungsten GmbH rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), H.C. Starck Tungsten GmbH ranks #47,348 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 H.C. Starck Tungsten GmbH hold?

H.C. Starck Tungsten GmbH holds 5 US utility patents granted between 2021 and 2025, spanning 13 technology areas.

What is H.C. Starck Tungsten GmbH's Innovation Score?

H.C. Starck Tungsten GmbH has an Innovation Score of 48.4 out of 100 (top 17% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does H.C. Starck Tungsten GmbH focus on?

H.C. Starck Tungsten GmbH's top technology area is C22C (Alloys) with 4 patents, ranking #336 of 948 assignees active in that subclass. Grants appear in 13 CPC subclasses total.

Is H.C. Starck Tungsten GmbH's patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for H.C. Starck Tungsten GmbH.

What does claim depth mean for H.C. Starck Tungsten GmbH's patents?

H.C. Starck Tungsten GmbH's patents average 15.8 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 H.C. Starck Tungsten GmbH 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

H.C. Starck Tungsten GmbH

USPTO PatentsView assignee record - 5 granted patents across 13 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: C22C (Alloys).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, H.c. ranks #47,348 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 13 technology areas.

#47,348
of 49,997 US assignees by volume: Top 17%
by Innovation Score (48.4/100): 15.8
avg claims per patent

USPTO PatentsView assignee plate

Corpus R47348 · Foreign Corporation #47,348 · 5 grants

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

GRANTS-MICRO 5 grants
BOTTOM-DECILE #47,348/49,997
PHOTO-FINISH H-One
CPC-FOCUS C22C · 13 areas
INNOV-PAR 48.4/100
CLAIMS-RICH 15.8 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2021–2025 · 5y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: H-One Co., Ltd. (±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 H.c.’s 48.4 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 6.2 pts (13%) Velocity 20.0 pts (41%) Breadth 12.7 pts (26%) Claim depth 9.5 pts (20%)

Qualcomm Incorporated · highest

85
H C Starck Tungsten · this assignee

48
3D Lighting… · lowest

7

What this shows H.c.'s Innovation Score is 48.4/100 (top 17% 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 H.c.?

Each dot is one of H.c.’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). H.c.’s own 15.8 claims/patent is ABOVE the 10.4 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where H.c.'s grants concentrate

H.C. Starck Tungsten GmbH is a focused PatentsView assignee: 13 CPC subclasses with 80% of grants classified under C22C (Alloys). Peak complete grant year is 2022 (3 grants) versus a trough of 1 in 2021. By volume, H.c. sits between H-One Co., Ltd. and H3 Platform Inc..

H.c.'s three-year grant acceleration

H.C. Starck Tungsten GmbH shows 3 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.

H-one

5
H-tech

5
H S Machinery

5
H C Starck Soluti…

5
H P B Optoelectro…

5
H2

5
H2optx

5
H3 Platform

5
H C Starck Tungst… ◀

5

What this shows H.C. holds 5 patents at rank #47,286, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near HC

By rank, the assignees closest to #47,286 in granted patent volume.

Leaders in C22C (Alloys)

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

H.c.'s Innovation Score vs. every tracked assignee

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

48 Top 17% higher than 83% 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

H.C. Starck Tungsten GmbH patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2021	1	20.0%
2022	3	60.0%
2025partial year	1	20.0%

Which technologies does H.C. Starck Tungsten GmbH patent most?

C22C - Alloys 4

B22F - Working Metallic POWDER; Manufacture OF Articles From Metallic POWDER; Making Metallic Powder ; Apparatus OR Devices Specially Adapted FOR Metallic Powder 3

C01B - Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c 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

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 1

Y10T - Technical Subjects Covered BY Former US Classification 1

E21B - Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells 1

B23B - TURNING; Boring 1

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 1

C01G - Compounds Containing Metals NOT Covered BY Subclasses C01d OR C01f 1

C02F - Treatment OF Water, Waste Water, Sewage, OR Sludge 1

B01D - Separation 1

C01P - Indexing Scheme Relating TO Structural AND Physical Aspects OF Solid Inorganic Compounds 1

Top 13 of 13 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

H.C. Starck Tungsten GmbH's patent record in context - here's where to go next.

H.C. Starck Tungsten GmbH's lead technology class is C22C (Alloys), 80% of its portfolio - see every assignee active in that class. Explore C22C
Ranked #47,348 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare H.C. Starck Tungsten GmbH against H-One Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 48.4/100 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.