Where does H.C. Duke & Son, LLC rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), H.C. Duke & Son, LLC ranks #40,654 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. Duke & Son, LLC hold?

H.C. Duke & Son, LLC holds 6 US utility patents granted between 2017 and 2024, spanning 5 technology areas.

What is H.C. Duke & Son, LLC's Innovation Score?

H.C. Duke & Son, LLC has an Innovation Score of 32.1 out of 100 (40th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is H.C. Duke & Son, LLC's patent grant rate increasing or decreasing?

H.C. Duke & Son, LLC's recent grant velocity is +0% compared to the prior five-year period (grant years, not application filing dates). The company is maintaining or growing its granted-patent output.

What does claim depth mean for H.C. Duke & Son, LLC's patents?

H.C. Duke & Son, LLC's patents average 18.0 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. Duke & Son, LLC 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. Duke & Son, LLC

Q: What technology areas does H.C. Duke & Son, LLC focus on?

H.C. Duke & Son, LLC's top technology area is A23G (COCOA; Cocoa Products, e.g. CHOCOLATE; Substitutes FOR Cocoa OR Cocoa PRODUCTS; CONFECTIONERY; Chewing GUM; ICE-CREAM; Preparation Thereof) with 6 patents, ranking #45 of 237 assignees active in that subclass. Grants appear in 5 CPC subclasses total.

USPTO PatentsView assignee record - 6 granted patents across 5 technology areas, recorded in grant years 2017–2024. 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: A23G (COCOA; Cocoa Products, e.g. CHOCOLATE; Substitutes FOR Cocoa OR Cocoa PRODUCTS; CONFECTIONERY; Chewing GUM; ICE-CREAM; Preparation Thereof).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, H.c. ranks #40,654 of 49,997 tracked US assignees by granted-patent volume, with 6 patents across 5 technology areas.

#40,654
of 49,997 US assignees by volume: 40th percentile
by Innovation Score (32.1/100): 18.0
avg claims per patent: +0%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R40654 · US Corporation #40,654 · 6 grants

GRANTS-MICRO · LOWER-Q · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-RICH · TYPE-USCORP · VEL-FLAT · BOOK-FULL

GRANTS-MICRO 6 grants
LOWER-Q #40,654/49,997
PHOTO-FINISH H - 07 SRL
CPC-NARROW A23G · 5 areas
INNOV-THIN 32.1/100
CLAIMS-RICH 18.0 claims/avg
TYPE-USCORP US Corporation
VEL-FLAT +0% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: H - 07 SRL (±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 32.1 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 6.7 pts (21%) Velocity 6.7 pts (21%) Breadth 7.9 pts (25%) Claim depth 10.8 pts (34%)

Qualcomm Incorporated · highest

85
H C Duke & Son · this assignee

32
3D Lighting… · lowest

7

What this shows H.c.'s Innovation Score is 32.1/100 (40th percentile 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 18.0 claims/patent is ABOVE the 13.2 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. Duke & Son, LLC is a focused PatentsView assignee: 5 CPC subclasses with 100% of grants classified under A23G (COCOA; Cocoa Products, e.g. CHOCOLATE; Substitutes FOR Cocoa OR Cocoa PRODUCTS; CONFECTIONERY; Chewing GUM; ICE-CREAM; Preparation Thereof). Peak complete grant year is 2024 (2 grants) versus a trough of 1 in 2017. By volume, H.c. sits between H - 07 SRL and Haier Group Technique R&D Center.

H.c.'s three-year grant acceleration

H.C. Duke & Son, LLC shows 2 grants in 2022–2024 against only 2 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 - 07 SRL

6
H Quest Partners

6
H&L Tooth

6
H&smotorsports

6
H3alth

6
HAE Kwang

6
Haemostatix

6
Haier Group Techn…

6
H C Duke & Son ◀

6

What this shows H.C. holds 6 patents at rank #40,579, 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 #40,579 in granted patent volume.

Leaders in A23G (Cocoa)

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)

32 40th percentile higher than 40% 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 · 2017–2024

Grants by year

Teal-shaded recent years (2020–present) versus the 2017–2019 baseline. Full figures in the table below.

View data table

H.C. Duke & Son, LLC patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	1	16.7%
2018	1	16.7%
2019	1	16.7%
2020	1	16.7%
2024	2	33.3%

Which technologies does H.C. Duke & Son, LLC patent most?

A23G - COCOA; Cocoa Products, e.g. CHOCOLATE; Substitutes FOR Cocoa OR Cocoa PRODUCTS; CONFECTIONERY; Chewing GUM; ICE-CREAM; Preparation Thereof 6

F25B - Refrigeration Machines, Plants OR SYSTEMS; Combined Heating AND Refrigeration SYSTEMS; Heat Pump Systems 1

F25D - REFRIGERATORS; Cold ROOMS; ICE-BOXES; Cooling OR Freezing Apparatus NOT Otherwise Provided FOR 1

B08B - Cleaning IN GENERAL; Prevention OF Fouling IN General 1

B01F - Mixing, e.g. Dissolving, Emulsifying OR Dispersing 1

Top 5 of 5 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. Duke & Son, LLC's patent record in context - here's where to go next.

H.C. Duke & Son, LLC's lead technology class is A23G (COCOA; Cocoa Products, e.g. CHOCOLATE; Substitutes FOR Cocoa OR Cocoa PRODUCTS; CONFECTIONERY; Chewing GUM; ICE-CREAM; Preparation Thereof), 100% of its portfolio - see every assignee active in that class. Explore A23G
Ranked #40,654 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare H.C. Duke & Son, LLC against H - 07 SRL, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 32.1/100 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.