Where does Houghton Technical Corp. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Houghton Technical Corp. ranks #24,483 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 Houghton Technical Corp. hold?

Houghton Technical Corp. holds 11 US utility patents granted between 2016 and 2025, spanning 24 technology areas.

What is Houghton Technical Corp.'s Innovation Score?

Houghton Technical Corp. has an Innovation Score of 37.9 out of 100 (top 42% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Houghton Technical Corp. focus on?

Houghton Technical Corp.'s top technology area is C23G (Cleaning OR De-greasing OF Metallic Material BY Chemical Methods Other Than Electrolysis) with 4 patents, ranking #14 of 74 assignees active in that subclass. Grants appear in 24 CPC subclasses total.

Is Houghton Technical Corp.'s patent grant rate increasing or decreasing?

Houghton Technical Corp.'s recent grant velocity is -57% 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 Houghton Technical Corp.'s patents?

Houghton Technical Corp.'s patents average 14.4 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 Houghton Technical Corp. 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

Houghton Technical Corp.

USPTO PatentsView assignee record - 11 granted patents across 24 technology areas, recorded in grant years 2016–2025. 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: C23G (Cleaning OR De-greasing OF Metallic Material BY Chemical Methods Other Than Electrolysis).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Houghton ranks #24,483 of 49,997 tracked US assignees by granted-patent volume, with 11 patents across 24 technology areas.

#24,483
of 49,997 US assignees by volume: Top 42%
by Innovation Score (37.9/100): 14.4
avg claims per patent: -57%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R24483 · US Corporation #24,483 · 11 grants

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

GRANTS-MICRO 11 grants
MID-PACK #24,483/49,997
PHOTO-FINISH Hithium Tech HK
CPC-FOCUS C23G · 24 areas
INNOV-THIN 37.9/100
CLAIMS-RICH 14.4 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -57% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Hithium Tech HK Limited (±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 Houghton’s 37.9 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 8.6 pts (23%) Velocity 3.3 pts (9%) Breadth 17.3 pts (46%) Claim depth 8.7 pts (23%)

Qualcomm Incorporated · highest

85
206 Ortho · near

38
Bripco Bvba · near

38
First American… · near

38
Houghton Technical · this assignee

38
LM Glasfiber A/S · near

38
3D Lighting… · lowest

7

What this shows Houghton's Innovation Score is 37.9/100 (top 42% 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 Houghton?

Each dot is one of Houghton’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). Houghton’s own 14.4 claims/patent is ABOVE the 13.6 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Houghton's grants concentrate

Houghton Technical Corp. is a focused PatentsView assignee: 24 CPC subclasses with 36.4% of grants classified under C23G (Cleaning OR De-greasing OF Metallic Material BY Chemical Methods Other Than Electrolysis). Peak complete grant year is 2019 (3 grants) versus a trough of 1 in 2016. By volume, Houghton sits between Hithium Tech HK Limited and Huber SE.

Houghton's three-year grant acceleration

Houghton Technical Corp. shows 2 grants in 2022–2024 against only 4 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.

Hithium Tech HK

11
Hokuto

11
Hollymatic

11
Hoteck

11
HP3 Real

11
Hsing Chau Indust…

11
HTS

11
Huber SE

11
Houghton Technical ◀

11

What this shows Houghton holds 11 patents at rank #24,450, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Houghton

By rank, the assignees closest to #24,450 in granted patent volume.

Leaders in C23G (Cleaning OR De-greasing OF Metallic Material BY Chemical…)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Houghton, neither rank-band nor same-CPC leaders (those blocks stay above). In C23G (Cleaning OR De-greasing OF Metallic Material BY Chemical…), Houghton ranks #14 of 74 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (38 here).

206 Ortho, Inc. 38 Bripco Bvba 38 First American Financial Corporation 38 LM Glasfiber A/S 38

Houghton's Innovation Score vs. every tracked assignee

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

38 Top 42% higher than 58% 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 · 2016–2025

Grants by year

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

View data table

Houghton Technical Corp. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	9.1%
2017	2	18.2%
2018	1	9.1%
2019	3	27.3%
2020	1	9.1%
2022	1	9.1%
2023	1	9.1%
2025partial year	1	9.1%

Which technologies does Houghton Technical Corp. patent most?

C23G - Cleaning OR De-greasing OF Metallic Material BY Chemical Methods Other Than Electrolysis 4

C11D - Detergent COMPOSITIONS; USE OF Single Substances AS DETERGENTS; Soap OR SOAP-MAKING; Resin SOAPS; Recovery OF Glycerol 4

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 3

C23F - Non-mechanical Removal OF Metallic Material From Surface ; Inhibiting Corrosion OF Metallic Material OR Incrustation IN GENERAL; Multi-step Processes FOR Surface Treatment OF Metallic Material Involving AT Least ONE Process Provided FOR IN Class C23 AND AT Least ONE Process Covered BY Subclass C21d 2

C25D - Processes FOR THE Electrolytic OR Electrophoretic Production OF COATINGS; ELECTROFORMING; Apparatus Therefor 2

Y10T - Technical Subjects Covered BY Former US Classification 2

C10M - Lubricating Compositions ; USE OF Chemical Substances Either Alone OR AS Lubricating Ingredients IN A Lubricating Composition 2

C10N - Indexing Scheme Associated With Subclass C10m Relating TO Lubricating Compositions 2

B22C - Foundry Moulding 1

B22D - Casting OF METALS; Casting OF Other Substances BY THE Same Processes OR Devices 1

C09K - Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere 1

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

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 1

A01N - Preservation OF Bodies OF Humans OR Animals OR Plants OR Parts Thereof ; Biocides, e.g. AS Disinfectants, AS Pesticides OR AS Herbicides ; Pest Repellants OR ATTRACTANTS; Plant Growth Regulators 1

C08G - Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds 1

Top 15 of 24 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

Houghton Technical Corp.'s patent record in context - here's where to go next.

Houghton Technical Corp.'s lead technology class is C23G (Cleaning OR De-greasing OF Metallic Material BY Chemical Methods Other Than Electrolysis), 36.4% of its portfolio - see every assignee active in that class. Explore C23G
Ranked #24,483 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Houghton Technical Corp. against Hithium Tech HK Limited, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 37.9/100 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.