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

According to USPTO PatentsView (2015–2025 granted utility patents), H.C. Starck Inc. ranks #3,596 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 Inc. hold?

H.C. Starck Inc. holds 102 US utility patents granted between 2015 and 2022, spanning 47 technology areas.

What is H.C. Starck Inc.'s Innovation Score?

H.C. Starck Inc. has an Innovation Score of 53.6 out of 100 (top 9% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

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

H.C. Starck Inc.'s recent grant velocity is -52% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

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

H.C. Starck Inc.'s patents average 21.3 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 Inc. 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

H.C. Starck Inc.

Q: What technology areas does H.C. Starck Inc. focus on?

H.C. Starck Inc.'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 52 patents. Grants appear in 47 CPC subclasses total.

USPTO PatentsView assignee record - 102 granted patents across 47 technology areas, recorded in grant years 2015–2022. 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: 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, H.c. ranks #3,596 of 49,997 tracked US assignees by granted-patent volume, with 102 patents across 47 technology areas.

#3,596
of 49,997 US assignees by volume: Top 9%
by Innovation Score (53.6/100): 21.3
avg claims per patent: -52%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R3596 · US Corporation #3,596 · 102 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-WIDE · INNOV-PAR · CLAIMS-DENSE · TYPE-USCORP · VEL-DROP · BOOK-FULL

GRANTS-MID 102 grants
TOP-DECILE #3,596/49,997
PHOTO-FINISH Corcept Therapeutics…
CPC-WIDE B22F · 47 areas
INNOV-PAR 53.6/100
CLAIMS-DENSE 21.3 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -52% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Corcept Therapeutics Incorporated (±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.

Qualcomm Incorporated · highest

85
NEC Solution… · near

54
Amazonen-werke H… · near

54
H C Starck · this assignee

54
Saipem · near

54
Stepan · near

54
3D Lighting… · lowest

7

What this shows H.c.'s Innovation Score is 53.6/100 (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.

Where H.c.'s grants concentrate

H.C. Starck Inc. is a focused PatentsView assignee: 47 CPC subclasses with 51% 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 2015 (16 grants) versus a trough of 4 in 2022. By volume, H.c. sits between Corcept Therapeutics Incorporated and Kymab Limited.

H.c.'s three-year grant acceleration

From 2019–2021 to 2022–2024, H.C. Starck Inc. moved from 41 to 4 grants (0.10x the prior three-year total, a multiple, not a CAGR). Among 3,296 tracked assignees with ≥100 grants and ≥20 prior-period grants, that multiple ranks #3,179. See the growth leaderboard.

Corcept Therapeut…

102
Dupont Nutrition…

102
G D Societa' PER…

102
Genesis Photonics

102
Inficon

102
Infineum Internat…

102
Kakao

102
Kymab

102
H C Starck ◀

102

What this shows H.C. holds 102 patents at rank #3,596, 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 #3,596 in granted patent volume.

Leaders in B22F (Working Metallic Powder)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for HC, neither rank-band nor same-CPC leaders (those blocks stay above).

Similar innovation score

Nearest assignees by Innovation Score (54 here).

Stepan Company 54 Saipem S.A. 54 Amazonen-werke H. Dreyer SE & Co. KG 54 NEC Solution Innovators, Ltd. 54

Similar claim depth

Nearest assignees by average claims per patent (21.3 here).

RealD Inc. 21.3 avg Analog Devices, Inc. 21.2 avg Leap Motion, Inc. 21.2 avg NKT Photonics A/S 21.2 avg

H.c.'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 · 2015–2022

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

H.C. Starck Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	16	15.7%
2016	15	14.7%
2017	11	10.8%
2018	15	14.7%
2019	12	11.8%
2020	14	13.7%
2021	15	14.7%
2022	4	3.9%

Which technologies does H.C. Starck Inc. patent most?

B22F - Working Metallic POWDER; Manufacture OF Articles From Metallic POWDER; Making Metallic Powder ; Apparatus OR Devices Specially Adapted FOR Metallic Powder 52

C22C - Alloys 47

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 41

Y10T - Technical Subjects Covered BY Former US Classification 31

H01J - Electric Discharge Tubes OR Discharge Lamps 26

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 20

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 20

G06F - Electric Digital Data Processing 16

C22F - Changing THE Physical Structure OF Non-ferrous Metals AND Non-ferrous Alloys 16

C22B - Production AND Refining OF Metals ; Pretreatment OF RAW Materials 15

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 14

H01L - Semiconductor Devices NOT Covered BY Class H10 12

H01B - CABLES; CONDUCTORS; INSULATORS; Selection OF Materials FOR Their Conductive, Insulating OR Dielectric Properties 11

H01G - CAPACITORS; Capacitors, Rectifiers, Detectors, Switching Devices, Light-sensitive OR Temperature-sensitive Devices OF THE Electrolytic Type 10

G02F - Optical Devices OR Arrangements FOR THE Control OF Light BY Modification OF THE Optical Properties OF THE Media OF THE Elements Involved THEREIN; Non-linear OPTICS; Frequency-changing OF LIGHT; Optical Logic ELEMENTS; Optical ANALOGUE/DIGITAL Converters 9

Top 15 of 47 technology areas

Where it ranks

Overall rank by patents

#3,596

of 49,997 tracked assignees

Innovation Score

53.6 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

What to do with this data

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

H.C. Starck Inc.'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), 51% of its portfolio - see every assignee active in that class. Explore B22F
Ranked #3,596 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare H.C. Starck Inc. against Corcept Therapeutics Incorporated, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 53.6/100 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.