USPTO 2015–2025 USPTO PatentsView US Corporation

Rinnai America Corporation

USPTO PatentsView assignee record - 25 granted patents across 15 technology areas, active 2016–2024. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: F24H (FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

13.5

Avg claims per patent

+157%

5-year filing velocity

The verdict

Rinnai holds 25 US patents across 15 technology areas, rank #12,195 of 50,000 tracked assignees.

#12,195
of 50,000 US assignees by volume: Top 9%
by Innovation Score (53.0/100): 13.5
avg claims per patent: +157%
filing velocity, last 5 yrs

Portfolio overview

Rinnai America Corporation has been granted 25 US utility patents between 2016 and 2024, placing Rinnai America Corporation at rank #12,195 across all assignees tracked by PlainPatent. This portfolio spans 15 distinct Cooperative Patent Classification (CPC) subclasses, averaging 13.5 claims per patent with primary concentration in F24H (FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL). As a US Corporation, Rinnai America Corporation is one of the more focused assignees in the PatentsView dataset. By volume, Rinnai sits between Rehau Ag + Co. (25 patents, rank #12,191) and Röhm Gmbh (25 patents, rank #12,199) - the closest US assignees by grant volume. The composite Innovation Score of 53.0/100 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. Between 2020 and 2025 the company received 18 grants, compared with 7 in the 2015–2019 window, a +157% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. 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. Rinnai America Corporation's 13.5 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while concentration in 15 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Rinnai America Corporation against peers pursuing similar technology classes.

Rehau +

25
Resman AS

25
Revlon Consumer P…

25
Rieter Ingolstadt

25
Robotic Research

25
Rocky Research

25
Roivios

25
Röhm

25
Rinnai America ◀

25

What this shows Rinnai holds 25 patents at rank #12,195, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Rinnai

By rank, the assignees closest to #12,195 in granted patent volume.

Leaders in F24H (Fluid Heaters)

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

Rinnai's Innovation Score vs. every tracked assignee

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

53 Top 9% higher than 91% 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 · 2016–2024

Grants by year

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

View data table

Rinnai America Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	4.0%
2017	2	8.0%
2018	2	8.0%
2019	2	8.0%
2020	1	4.0%
2022	7	28.0%
2023	3	12.0%
2024	7	28.0%

Which technologies does Rinnai America Corporation patent most?

F24H - FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL 19

F24D - DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR 12

Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS 3

C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 3

G05D - SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES 2

B01D - SEPARATION 2

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 2

F23L - SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS ; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES 2

F23J - REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 2

F28D - HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT 1

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 1

B65D - CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES 1

H04L - TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 1

G05B - CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS 1

F23K - FEEDING FUEL TO COMBUSTION APPARATUS 1

Top 15 of 15 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Standard

Velocity Accelerating

Where it ranks

Overall rank by patents

#12,195

Across all tracked assignees

Innovation Score

53.0 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 Rinnai America Corporation hold?

Rinnai America Corporation holds 25 US granted patents filed between 2016 and 2024, spanning 15 technology areas.

What is Rinnai America Corporation's Innovation Score?

Rinnai America Corporation has an Innovation Score of 53.0 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Rinnai America Corporation focus on?

Rinnai America Corporation's top technology area is F24H (FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL) with 19 patents. The company has filed patents in 15 CPC subclasses total.

Is Rinnai America Corporation's patent filing rate increasing or decreasing?

Rinnai America Corporation's recent filing velocity is +157% compared to the prior five-year period. This indicates accelerating innovation.

What does claim depth mean for Rinnai America Corporation's patents?

Rinnai America Corporation's patents average 13.5 claims each. This falls within the standard range, providing solid legal coverage.

How is the Rinnai America Corporation 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

Rinnai's 25 grants land it in the top 9% 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 - Rinnai ranks #12,195 of 50,000. Top 50 holders
Most of this portfolio concentrates in F24H - see who else leads that technology area. F24H 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 · 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.