Where does Rheinkalk GmbH rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Rheinkalk GmbH ranks #37,243 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 Rheinkalk GmbH hold?

Rheinkalk GmbH holds 7 US utility patents granted between 2015 and 2021, spanning 12 technology areas.

What is Rheinkalk GmbH's Innovation Score?

Rheinkalk GmbH has an Innovation Score of 28.0 out of 100 (26th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Rheinkalk GmbH's patent grant rate increasing or decreasing?

Rheinkalk GmbH's recent grant velocity is -25% 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 Rheinkalk GmbH's patents?

Rheinkalk GmbH's patents average 14.3 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 Rheinkalk GmbH 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

Rheinkalk GmbH

Q: What technology areas does Rheinkalk GmbH focus on?

Rheinkalk GmbH's top technology area is B01J (Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus) with 2 patents. Grants appear in 12 CPC subclasses total.

USPTO PatentsView assignee record - 7 granted patents across 12 technology areas, recorded in grant years 2015–2021. 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: B01J (Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Rheinkalk ranks #37,243 of 49,997 tracked US assignees by granted-patent volume, with 7 patents across 12 technology areas.

#37,243
of 49,997 US assignees by volume: 26th percentile
by Innovation Score (28.0/100): 14.3
avg claims per patent: -25%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R37243 · Foreign Corporation #37,243 · 7 grants

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

GRANTS-MICRO 7 grants
MID-PACK #37,243/49,997
PHOTO-FINISH Research Institute…
CPC-FOCUS B01J · 12 areas
INNOV-THIN 28.0/100
CLAIMS-RICH 14.3 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -25% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Research Institute for Electromagnetic Materials (±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.

Qualcomm Incorporated · highest

85
Rheinkalk · this assignee

28
3D Lighting… · lowest

7

What this shows Rheinkalk's Innovation Score is 28.0/100 (26th 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.

Where Rheinkalk's grants concentrate

Rheinkalk GmbH is a focused PatentsView assignee: 12 CPC subclasses with 28.6% of grants classified under B01J (Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus). Peak complete grant year is 2020 (2 grants) versus a trough of 1 in 2015. By volume, Rheinkalk sits between Research Institute for Electromagnetic Materials and Rich Technologies Holding Company, LLC.

Research Institut…

7
Research Instrume…

7
Research Intertio…

7
Revieve Oy

7
Rhodan Marine Sys…

7
Rhode Island Hosp…

7
Rhythmlink Intern…

7
Rich Holding

7
Rheinkalk ◀

7

What this shows Rheinkalk holds 7 patents at rank #37,242, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Rheinkalk

By rank, the assignees closest to #37,242 in granted patent volume.

Leaders in B01J (Chemical OR Physical Processes)

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

Rheinkalk's Innovation Score vs. every tracked assignee

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

28 26th percentile higher than 26% 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 · 2015–2021

Grants by year

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

View data table

Rheinkalk GmbH patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	14.3%
2016	1	14.3%
2018	1	14.3%
2019	1	14.3%
2020	2	28.6%
2021	1	14.3%

Which technologies does Rheinkalk GmbH patent most?

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 2

B01D - Separation 2

C02F - Treatment OF Water, Waste Water, Sewage, OR Sludge 2

C22B - Production AND Refining OF Metals ; Pretreatment OF RAW Materials 2

C21B - Manufacture OF Iron OR Steel 2

C12P - Fermentation OR Enzyme-using Processes TO Synthesise A Desired Chemical Compound OR Composition OR TO Separate Optical Isomers From A Racemic Mixture 1

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 1

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 1

Y02W - Climate Change Mitigation Technologies Related TO Wastewater Treatment OR Waste Management 1

C04B - Lime, MAGNESIA; SLAG; CEMENTS; Compositions Thereof, e.g. Mortars, Concrete OR Like Building MATERIALS; Artificial Stone ; Ceramics ; REFRACTORIES; Treatment OF Natural Stone 1

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 1

C21C - Processing OF Pig-iron, e.g. Refining, Manufacture OF Wrought-iron OR STEEL; Treatment IN Molten State OF Ferrous Alloys 1

Top 12 of 12 technology areas

Where it ranks

Overall rank by patents

#37,243

of 49,997 tracked assignees

Innovation Score

28.0 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

What to do with this data

Rheinkalk GmbH's patent record in context - here's where to go next.

Rheinkalk GmbH's lead technology class is B01J (Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus), 28.6% of its portfolio - see every assignee active in that class. Explore B01J
Ranked #37,243 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Rheinkalk GmbH against Research Institute for Electromagnetic Materials, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 28.0/100 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.