Where does Dorf Ketal Chemicals (I) Private Limited rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Dorf Ketal Chemicals (I) Private Limited ranks #46,267 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 Dorf Ketal Chemicals (I) Private Limited hold?

Dorf Ketal Chemicals (I) Private Limited holds 5 US utility patents granted between 2015 and 2018, spanning 6 technology areas.

What is Dorf Ketal Chemicals (I) Private Limited's Innovation Score?

Dorf Ketal Chemicals (I) Private Limited has an Innovation Score of 29.9 out of 100 (32nd percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Dorf Ketal Chemicals (I) Private Limited's patent grant rate increasing or decreasing?

Dorf Ketal Chemicals (I) Private Limited's recent grant velocity is -100% 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 Dorf Ketal Chemicals (I) Private Limited's patents?

Dorf Ketal Chemicals (I) Private Limited's patents average 29.0 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 Dorf Ketal Chemicals (I) Private 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Dorf Ketal Chemicals (I) Private Limited

Q: What technology areas does Dorf Ketal Chemicals (I) Private Limited focus on?

Dorf Ketal Chemicals (I) Private Limited's top technology area is C10G (Cracking Hydrocarbon OILS; Production OF Liquid Hydrocarbon Mixtures, e.g. BY Destructive Hydrogenation, Oligomerisation, Polymerisation ; Recovery OF Hydrocarbon Oils From Oil-shale, Oil-sand, OR GASES; Refining Mixtures Mainly Consisting OF HYDROCARBONS; Reforming OF NAPHTHA; Mineral Waxes) with 5 patents, ranking #200 of 504 assignees active in that subclass. Grants appear in 6 CPC subclasses total.

USPTO PatentsView assignee record - 5 granted patents across 6 technology areas, recorded in grant years 2015–2018. 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: C10G (Cracking Hydrocarbon OILS; Production OF Liquid Hydrocarbon Mixtures, e.g. BY Destructive Hydrogenation, Oligomerisation, Polymerisation ; Recovery OF Hydrocarbon Oils From Oil-shale, Oil-sand, OR GAS).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Dorf ranks #46,267 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 6 technology areas.

#46,267
of 49,997 US assignees by volume: 32nd percentile
by Innovation Score (29.9/100): 29.0
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R46267 · Foreign Corporation #46,267 · 5 grants

GRANTS-MICRO · BOTTOM-DECILE · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-DENSE · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 5 grants
BOTTOM-DECILE #46,267/49,997
PHOTO-FINISH Dongguan Siyou…
CPC-NARROW C10G · 6 areas
INNOV-THIN 29.9/100
CLAIMS-DENSE 29.0 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Dongguan Siyou Electronic Technology Co., Ltd (±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 Dorf’s 29.9 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 6.2 pts (21%) Velocity 0.0 pts (0%) Breadth 8.7 pts (29%) Claim depth 15.0 pts (50%)

Qualcomm Incorporated · highest

85
Dorf Ketal Chemicals… · this assignee

30
3D Lighting… · lowest

7

What this shows Dorf's Innovation Score is 29.9/100 (32nd 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 Dorf?

Each dot is one of Dorf’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). Dorf’s own 29.0 claims/patent is ABOVE the 11.8 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Dorf's grants concentrate

Dorf Ketal Chemicals (I) Private Limited is a focused PatentsView assignee: 6 CPC subclasses with 100% of grants classified under C10G (Cracking Hydrocarbon OILS; Production OF Liquid Hydrocarbon Mixtures, e.g. BY Destructive Hydrogenation, Oligomerisation, Polymerisation ; Recovery OF Hydrocarbon Oils From Oil-shale, Oil-sand, OR GAS). Peak complete grant year is 2015 (3 grants) versus a trough of 1 in 2016. By volume, Dorf sits between Dongguan Siyou Electronic Technology Co., Ltd and Dr. Brown's Company.

Dongguan Siyou Te…

5
Dongguan Zhanshen…

5
Dongguan Zheshi T…

5
Dongshin Hydrauli…

5
Dotproduct

5
Doug Carson & Ass…

5
Douglas Technical

5
Dr Brown's

5
Dorf Ketal Chemic… ◀

5

What this shows Dorf holds 5 patents at rank #46,323, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Dorf

By rank, the assignees closest to #46,323 in granted patent volume.

Leaders in C10G (Cracking Hydrocarbon OILS)

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

Dorf's Innovation Score vs. every tracked assignee

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

30 32nd percentile higher than 32% 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 · 2015–2018

Grants by year

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

View data table

Dorf Ketal Chemicals (I) Private Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	3	60.0%
2016	1	20.0%
2018	1	20.0%

Which technologies does Dorf Ketal Chemicals (I) Private Limited patent most?

C10G - Cracking Hydrocarbon OILS; Production OF Liquid Hydrocarbon Mixtures, e.g. BY Destructive Hydrogenation, Oligomerisation, Polymerisation ; Recovery OF Hydrocarbon Oils From Oil-shale, Oil-sand, OR GASES; Refining Mixtures Mainly Consisting OF HYDROCARBONS; Reforming OF NAPHTHA; Mineral Waxes 5

C10L - Fuels NOT Otherwise Provided FOR; Natural GAS; Synthetic Natural GAS Obtained BY Processes NOT Covered BY Subclasses C10g OR C10K; Liquified Petroleum GAS; USE OF Additives TO Fuels OR FIRES; Fire-lighters 2

C10M - Lubricating Compositions ; USE OF Chemical Substances Either Alone OR AS Lubricating Ingredients IN A Lubricating Composition 1

C10N - Indexing Scheme Associated With Subclass C10m Relating TO Lubricating Compositions 1

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

C07F - Acyclic, Carbocyclic OR Heterocyclic Compounds Containing Elements Other Than Carbon, Hydrogen, Halogen, Oxygen, Nitrogen, Sulfur, Selenium OR Tellurium 1

Top 6 of 6 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

Dorf Ketal Chemicals (I) Private Limited's patent record in context - here's where to go next.

Dorf Ketal Chemicals (I) Private Limited's lead technology class is C10G (Cracking Hydrocarbon OILS; Production OF Liquid Hydrocarbon Mixtures, e.g. BY Destructive Hydrogenation, Oligomerisation, Polymerisation ; Recovery OF Hydrocarbon Oils From Oil-shale, Oil-sand, OR GAS), 100% of its portfolio - see every assignee active in that class. Explore C10G
Ranked #46,267 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Dorf Ketal Chemicals (I) Private Limited against Dongguan Siyou Electronic Technology Co., Ltd, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 29.9/100 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.