Carl-Johan Hjerpe

This inventor holds 12 USPTO granted patents, plus 2 CIPO patents and 5 EPO patents. Top assignees: Gas Turbine Efficiency Ab, Ecoservices, LLC, Pratt & Whitney Line Maintenance Services, Inc.. Active years: 2007-2018.

USPTO Granted Patents = 12

% Patents Active = 66.7

CIPO Patents = 2

EPO Patents = 5 (Patent Applications = 3)

Average Co-Inventor Count = 1.5

ph-index = 6

Forward Citations = 135(Granted Patents)

Company Filing History:

7 out of 9

Gas Turbine Efficiency Ab

Pratt & Whitney Line Maintenance Services, Inc.

patents

Years Active: 2007-2018

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12 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10041372 - System for washing an aero gas turbine engine (2018-08-07),

2. 9657589 - System for washing an aero gas turbine engine (2017-05-23),

3. 8479754 - System for washing an aero gas turbine engine (2013-07-09),

4. 8273187 - Probe cleaning method and apparatus (2012-09-25),

5. 8066816 - Probe cleaning method and apparatus (2011-11-29),

6. 7938910 - Method for washing gas turbine compressor with nozzle (2011-05-10),

7. 7815743 - Method and apparatus for cleaning a turbofan gas turbine engine (2010-10-19),

8. 7670440 - Nozzle and method for washing gas turbine compressors (2010-03-02),

9. 7497220 - Method and apparatus for cleaning a turbofan gas turbine engine (2009-03-03),

10. 7428906 - Method for cleaning a stationary gas turbine unit during operation (2008-09-30),

11. 7428818 - System and method for augmenting power output from a gas turbine engine (2008-09-30),

12. 7297260 - System and devices for collecting and treating waste water from engine washing (2007-11-20),

Title: Innovations by Carl-Johan Hjerpe

Introduction

Carl-Johan Hjerpe is a notable inventor based in Nacka, Sweden. He has made significant contributions to the field of gas turbine engine technology, holding a total of 12 patents. His work focuses on innovative systems designed to enhance the efficiency and effectiveness of washing gas turbine engines.

Latest Patents

Hjerpe's latest patents include a system for washing an aero gas turbine engine. This system comprises a spray device with at least one nozzle that injects liquid into the engine's inlet during a washing operation. It features a wash unit that distributes the liquid to the spray device and a positioning device that allows the spray device to move in three dimensions. This design enables the spray device to be positioned for washing without any contact with the engine. Additionally, the invention includes a mobile vehicle that carries the washing system and a liquid collecting unit to gather waste wash liquid during the washing process.

Career Highlights

Throughout his career, Hjerpe has worked with various companies, including Gas Turbine Efficiency AB and Ecoservices, LLC. His expertise in gas turbine technology has allowed him to develop innovative solutions that address industry challenges.

Collaborations

Hjerpe has collaborated with professionals in his field, including his coworker Peter Asplund. Their joint efforts have contributed to advancements in gas turbine engine maintenance and efficiency.

Conclusion

Carl-Johan Hjerpe's contributions to gas turbine technology through his innovative patents and collaborations highlight his role as a significant inventor in the field. His work continues to influence the industry and improve engine maintenance practices.