USPTO 2015–2025 USPTO PatentsView US Corporation

Harbisonwalker International Holdings, Inc.

USPTO PatentsView assignee record - 9 granted patents across 17 technology areas, active 2020–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: F27D (DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

17.9

Avg claims per patent

5-year filing velocity

The verdict

Harbisonwalker holds 9 US patents across 17 technology areas, rank #28,970 of 50,000 tracked assignees.

#28,970
of 50,000 US assignees by volume: Top 14%
by Innovation Score (49.9/100): 17.9
avg claims per patent

Portfolio overview

Harbisonwalker International Holdings, Inc. has been granted 9 US utility patents between 2020 and 2025, placing Harbisonwalker International Holdings, Inc. at rank #28,970 across all assignees tracked by PlainPatent. This portfolio spans 17 distinct Cooperative Patent Classification (CPC) subclasses, averaging 17.9 claims per patent with primary concentration in F27D (DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE). As a US Corporation, Harbisonwalker International Holdings, Inc. is one of the more focused assignees in the PatentsView dataset. By volume, Harbisonwalker sits between Hangzhou Timing Security Technologies Co., Ltd. (9 patents, rank #28,966) and Hatebur Umformmaschinen Ag (9 patents, rank #28,974) - the closest US assignees by grant volume. The composite Innovation Score of 49.9/100 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. Historical data spans 2020 through 2025, with 9 total grants over that period. Velocity comparisons require five years of historical filings to calibrate. The US 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. Harbisonwalker International Holdings, Inc.'s 17.9 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while concentration in 17 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Harbisonwalker International Holdings, Inc. against peers pursuing similar technology classes.

Hangzhou Timing S…

9
Hangzhou Yue Fu S…

9
Hanon Systems EFP…

9
Hansa Medical Pro…

9
Harcosemco

9
Harman Becker Gep…

9
Harris Technology

9
Hatebur Umformmas…

9
Harbisonwalker In… ◀

9

What this shows Harbisonwalker holds 9 patents at rank #28,970, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Harbisonwalker

By rank, the assignees closest to #28,970 in granted patent volume.

Leaders in F27D (Details OR Accessories OF Furnaces)

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

Harbisonwalker's Innovation Score vs. every tracked assignee

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

50 Top 14% higher than 86% 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 · 2020–2025

Grants by year

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

View data table

Harbisonwalker International Holdings, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2020	1	11.1%
2021	1	11.1%
2022	2	22.2%
2023	1	11.1%
2024	2	22.2%
2025	2	22.2%

Which technologies does Harbisonwalker International Holdings, Inc. patent most?

F27D - DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE 6

C04B - LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE ; CERAMICS ; REFRACTORIES; TREATMENT OF NATURAL STONE 2

F27B - FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS 2

B22D - CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES 2

C03C - CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS 1

B07C - POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING 1

C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE 1

G01J - MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY 1

H04N - PICTORIAL COMMUNICATION, e.g. TELEVISION 1

G01S - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES 1

G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 1

G06T - IMAGE DATA PROCESSING OR GENERATION, IN GENERAL 1

F16M - FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS 1

F16B - DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING 1

C21C - PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS 1

Top 15 of 17 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Standard

Where it ranks

Overall rank by patents

#28,970

Across all tracked assignees

Innovation Score

49.9 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 Harbisonwalker International Holdings, Inc. hold?

Harbisonwalker International Holdings, Inc. holds 9 US granted patents filed between 2020 and 2025, spanning 17 technology areas.

What is Harbisonwalker International Holdings, Inc.'s Innovation Score?

Harbisonwalker International Holdings, Inc. has an Innovation Score of 49.9 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Harbisonwalker International Holdings, Inc. focus on?

Harbisonwalker International Holdings, Inc.'s top technology area is F27D (DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE) with 6 patents. The company has filed patents in 17 CPC subclasses total.

Is Harbisonwalker International Holdings, Inc.'s patent filing rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Harbisonwalker International Holdings, Inc..

What does claim depth mean for Harbisonwalker International Holdings, Inc.'s patents?

Harbisonwalker International Holdings, Inc.'s patents average 17.9 claims each. This falls within the standard range, providing solid legal coverage.

How is the Harbisonwalker International Holdings, 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.

How to use this portfolio

Harbisonwalker's 9 grants land it in the top 14% 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 - Harbisonwalker ranks #28,970 of 50,000. Top 50 holders
Most of this portfolio concentrates in F27D - see who else leads that technology area. F27D 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

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.