Released on = May 4, 2007, 1:39 pm

Press Release Author = Brian C. Murphy

Industry = Aerospace

Press Release Summary = Lambda Technologies patent upheld against Ecoroll Corp. Tool
Technology challenge.
U.S. Patent and Trademark Office reexamines and reaffirms Lambda's surface
enhancement technology.


Press Release Body = Cincinnati, Ohio - May 4, 2007 - Cincinnati-based, Lambda
Technologies (www.lambdatechs.com) is pleased to announce that the U.S. Patent and
Trademark Office has completed its reexamination of Lambda Technologies' patent No.
5,826,453, named "Burnishing Method and Apparatus for Providing a Layer of
Compressive Residual Stress in the Surface of a Workpiece" and confirmed the
patentability of all 20 claims contained therein.

Patent No. 5,826,453, issued on October 27, 1998, protects Lambda's breakthrough
method of improving the surface of metal components known as Low Plasticity
Burnishing (LPB). Between 2003 and 2005, Ecoroll Corp. Tool Technology of Milford,
Ohio, an affiliate of Ecoroll AG Werkzeugtechnik of Germany, initiated a series of
challenges to the validity of Lambda's patented burnishing technologies in the U.S.
Patent and Trademark Office. The latest of these disputes was filed in October of
2005 and tested the validity of patent No. 5,826,453. The U.S. Patent and Trademark
Office found all claims to be "patentable over the applied art of record."

Lambda's Corporate Counsel, Brian A. Tent, noted "with the conclusion of the '453
proceedings, all of Lambda's burnishing patents have emerged from reexamination
intact, enforceable and stronger".

LPB is a proven surface treatment that develops a deep layer of high compressive
residual stress (RS) to mitigate fretting fatigue, corrosion fatigue, or fatigue
from foreign object damage (FOD) in the fatigue prone areas of expensive and
critical aircraft components such as landing gear, propeller hubs, and turbine
engine blades.

Unlike other burnishing or \"deep rolling\" methods, LPB involves a single pass of a
smooth free rolling spherical ball tool used under a normal force sufficient to
deform the surface of the material, creating a thermally and mechanically stable
layer of compressive residual stress with controlled or minimized plastic
deformation. Application of LPB promises significant fatigue life extension with
minimal initial capital investment and low production costs.

Lambda Technologies is an innovative company incorporating a premier materials
research laboratory with a world-class engineering and production enterprise
dedicated to the development and optimization of surface treatments to improve
component performance. For additional information on Lambda Technologies or
licensing the LPB process, contact Brian C. Murphy at (513) 561-0883 or visit
www.lambdatechs.com.

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Web Site = http://www.lambdatechs.com

Contact Details = Brian C. Murphy
Lambda Technologies Corporate Headquarters
3929 Virginia Avenue
Cincinnati, OH 45227-3411
Tel: (513) 561-0883
Toll-Free: (800) 883-0851
Fax: (513) 561-0886
E-mail: bmurphy@lambdatechs.com