% Expired Patents = 22.2

EPO Patents = 2

Forward Citations = 158

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2 inventors (with patents filed for the assignee):

Peter Asplund (8 out of 14 patents)

Carl-Johan Hjerpe (7 out of 12 patents)

9 patents: Sort by Forward Citations

1. 7938910 - Method for washing gas turbine compressor with nozzle (2011-05-10),

2. 7815743 - Method and apparatus for cleaning a turbofan gas turbine engine (2010-10-19),

3. 7670440 - Nozzle and method for washing gas turbine compressors (2010-03-02),

4. 7497220 - Method and apparatus for cleaning a turbofan gas turbine engine (2009-03-03),

5. 7428906 - Method for cleaning a stationary gas turbine unit during operation (2008-09-30),

6. 7428818 - System and method for augmenting power output from a gas turbine engine (2008-09-30),

7. 7297260 - System and devices for collecting and treating waste water from engine washing (2007-11-20),

8. D548899 - Manifold for washing gas turbine aircraft engines (2007-08-14),

9. 5868860 - Method of washing objects, such as turbine compressors (1999-02-09),

Company Overview

Gas Turbine Efficiency Ab is a leading provider of gas turbine services and solutions. With advanced technology and innovative approaches, they optimize the performance and efficiency of gas turbines for various industries. Their expertise includes maintenance, repair, and performance enhancement to maximize the uptime and longevity of gas turbine systems.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

9 Patents

#40 in

#63 in Sweden

SE

Gas Turbine Efficiency Ab

Forward Citations = 158

2 inventors:

Peter Asplund (8 out of 14 patents)

Carl-Johan Hjerpe (7 out of 12 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Gas Turbine Efficiency Ab. Retrieved from https://idiyas.com/company/gas-turbine-efficiency-ab

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

2 patents (EPO):

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]