USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Efficient Energy Gmbh

USPTO PatentsView assignee record - 26 granted patents across 21 technology areas, active 2015–2023. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: F25B (REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS).

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

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

15.8

Avg claims per patent

-27%

5-year filing velocity

The verdict

Efficient holds 26 US patents across 21 technology areas, rank #11,629 of 50,000 tracked assignees.

#11,629
of 50,000 US assignees by volume: Top 40%
by Innovation Score (38.6/100): 15.8
avg claims per patent: -27%
filing velocity, last 5 yrs

Portfolio overview

Efficient Energy Gmbh has been granted 26 US utility patents between 2015 and 2023, placing Efficient Energy Gmbh at rank #11,629 across all assignees tracked by PlainPatent. This portfolio spans 21 distinct Cooperative Patent Classification (CPC) subclasses, averaging 15.8 claims per patent with primary concentration in F25B (REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS). As a Foreign Corporation, Efficient Energy Gmbh is one of the more focused assignees in the PatentsView dataset. By volume, Efficient sits between Davol Inc. (26 patents, rank #11,625) and Elementis Specialties, Inc. (26 patents, rank #11,633) - the closest US assignees by grant volume. The composite Innovation Score of 38.6/100 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 11 grants, compared with 15 in the 2015–2019 window, a -27% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. The Foreign 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. Efficient Energy Gmbh's 15.8 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a multi-domain presence across 21 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Efficient Energy Gmbh against peers pursuing similar technology classes.

Davol

26
Department of Bio…

26
Design Infini

26
Ecobee

26
Eiken Kagaku

26
EJOT & KG

26
Elbex Video

26
Elementis Special…

26
Efficient Energy ◀

26

What this shows Efficient holds 26 patents at rank #11,629, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Efficient

By rank, the assignees closest to #11,629 in granted patent volume.

Leaders in F25B (Refrigeration Machines)

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

Efficient's Innovation Score vs. every tracked assignee

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

39 Top 40% higher than 60% 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 · 2015–2023

Grants by year

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

View data table

Efficient Energy Gmbh patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	7.7%
2016	1	3.8%
2017	3	11.5%
2018	4	15.4%
2019	5	19.2%
2020	3	11.5%
2021	5	19.2%
2022	1	3.8%
2023	2	7.7%

Which technologies does Efficient Energy Gmbh patent most?

F25B - REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS 23

Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS 9

Y02A - TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE 5

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 5

F24D - DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR 4

F28F - DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION 4

F24H - FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL 3

F28D - HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT 3

F04D - NON-POSITIVE-DISPLACEMENT PUMPS 3

H05K - PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 2

F24V - COLLECTION, PRODUCTION OR USE OF HEAT NOT OTHERWISE PROVIDED FOR 2

B23P - METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 2

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

F05D - INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS 2

F24T - GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS 2

Top 15 of 21 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Multi-domain

Claim Depth Standard

Velocity Declining

Where it ranks

Overall rank by patents

#11,629

Across all tracked assignees

Innovation Score

38.6 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 Efficient Energy Gmbh hold?

Efficient Energy Gmbh holds 26 US granted patents filed between 2015 and 2023, spanning 21 technology areas.

What is Efficient Energy Gmbh's Innovation Score?

Efficient Energy Gmbh has an Innovation Score of 38.6 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Efficient Energy Gmbh focus on?

Efficient Energy Gmbh's top technology area is F25B (REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS) with 23 patents. The company has filed patents in 21 CPC subclasses total.

Is Efficient Energy Gmbh's patent filing rate increasing or decreasing?

Efficient Energy Gmbh's recent filing velocity is -27% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

What does claim depth mean for Efficient Energy Gmbh's patents?

Efficient Energy Gmbh's patents average 15.8 claims each. This falls within the standard range, providing solid legal coverage.

How is the Efficient Energy 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.

How to use this portfolio

Efficient's 26 grants land it in the top 40% 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 - Efficient ranks #11,629 of 50,000. Top 50 holders
Most of this portfolio concentrates in F25B - see who else leads that technology area. F25B 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.