USPTO 2015–2025 USPTO PatentsView Foreign Corporation

HS Marston Aerospace Limited

USPTO PatentsView assignee record - 34 granted patents across 30 technology areas, active 2016–2024. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: F28F (DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

11.7

Avg claims per patent

+286%

5-year filing velocity

The verdict

HS holds 34 US patents across 30 technology areas, rank #9,277 of 50,000 tracked assignees.

#9,277
of 50,000 US assignees by volume: Top 35%
by Innovation Score (40.7/100): 11.7
avg claims per patent: +286%
filing velocity, last 5 yrs

Portfolio overview

HS Marston Aerospace Limited has been granted 34 US utility patents between 2016 and 2024, placing HS Marston Aerospace Limited at rank #9,277 across all assignees tracked by PlainPatent. This portfolio spans 30 distinct Cooperative Patent Classification (CPC) subclasses, averaging 11.7 claims per patent with primary concentration in F28F (DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION). As a Foreign Corporation, HS Marston Aerospace Limited is one of the more focused assignees in the PatentsView dataset. By volume, HS sits between Guala Pack S.p.a. (34 patents, rank #9,273) and Huf North America Automotive Parts Manufacturing Corp. (34 patents, rank #9,281) - the closest US assignees by grant volume. The composite Innovation Score of 40.7/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 27 grants, compared with 7 in the 2015–2019 window, a +286% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. HS Marston Aerospace Limited's 11.7 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 30 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark HS Marston Aerospace Limited against peers pursuing similar technology classes.

Guala Pack S P A

34
Harris Global Com…

34
Highlife SAS

34
Horiba Instrument…

34
Henke-sass Wolf

34
Heron Therapeutics

34
Hublot Genève

34
Huf North America…

34
HS Marston Aerosp… ◀

34

What this shows HS holds 34 patents at rank #9,277, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near HS

By rank, the assignees closest to #9,277 in granted patent volume.

Leaders in F28F (Details OF Heat-exchange AND Heat-transfer Apparatus)

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

HS's Innovation Score vs. every tracked assignee

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

41 Top 35% higher than 65% of 50,000 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 · 2016–2024

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

HS Marston Aerospace Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	2	5.9%
2017	2	5.9%
2019	3	8.8%
2020	9	26.5%
2021	11	32.4%
2022	1	2.9%
2023	1	2.9%
2024	5	14.7%

Which technologies does HS Marston Aerospace Limited patent most?

F28F - DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION 24

F28D - HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT 17

B64D - EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT 8

B23P - METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 7

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 5

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 5

G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 5

B01D - SEPARATION 4

B21D - WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL 4

F28G - CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS 4

B22F - WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER ; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER 3

F01M - LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING 3

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 2

F02C - GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS 2

F16H - GEARING 2

Top 15 of 30 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Multi-domain

Claim Depth Simple

Velocity Accelerating

Where it ranks

Overall rank by patents

#9,277

Across all tracked assignees

Innovation Score

40.7 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does HS Marston Aerospace Limited hold?

HS Marston Aerospace Limited holds 34 US granted patents filed between 2016 and 2024, spanning 30 technology areas.

What is HS Marston Aerospace Limited's Innovation Score?

HS Marston Aerospace Limited has an Innovation Score of 40.7 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does HS Marston Aerospace Limited focus on?

HS Marston Aerospace Limited's top technology area is F28F (DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION) with 24 patents. The company has filed patents in 30 CPC subclasses total.

Is HS Marston Aerospace Limited's patent filing rate increasing or decreasing?

HS Marston Aerospace Limited's recent filing velocity is +286% compared to the prior five-year period. This indicates accelerating innovation.

What does claim depth mean for HS Marston Aerospace Limited's patents?

HS Marston Aerospace Limited's patents average 11.7 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the HS Marston Aerospace 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.

How to use this portfolio

HS's 34 grants land it in the top 35% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - HS ranks #9,277 of 50,000. Top 50 holders
Most of this portfolio concentrates in F28F - see who else leads that technology area. F28F leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

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 byPlainPatent Editorial, US Patent Intelligence Editorial Team · 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.