(The following is a reformatted version of a press release
issued by DuPont and received via electronic mail. The release
was confirmed by the sender.) 
DuPont Responds to Heraeus’ Claims in Patent Infringement Case 
WILMINGTON, Del., July 8, 2013 - DuPont today responded to the
most recent misleading claims issued by Heraeus in connection
with the ongoing patent litigation related to photovoltaic
pastes used in solar cells.  Contrary to Heraeus’ public
statements, the Court’s denial of Heraeus’ motion did not narrow
DuPont’s case at all. 
In the summer of 2012, DuPont filed a second patent infringement
lawsuit against Heraeus relating to the organic medium used in
Heraeus’ front side photovoltaic paste products.  In April 2013,
Heraeus sought to end the litigation without a trial by asking
the U.S. District Court for the District of Oregon for summary
The Court rejected every part of Heraeus’ argument, finding that
Heraeus’ position “is overly simplistic and ignores recent
Federal Circuit case law.”  That Court also ruled that DuPont is
entitled to a jury trial as to infringement, saying that “[i]t
is apparent to the court from the record already existing in
this case that there are genuine factual issues as to whether
Heraeus’ accused products infringe the ’504 patent . . . ." 
DuPont looks forward to enforcing its intellectual property in
this matter.  DuPont is pleased with the Court’s ruling, which
establishes that there is already persuasive evidence of
Heraeus’ infringement in the record of this case. 
“Heraeus tried to end this lawsuit early, but the Court agreed
with DuPont,” said Darren Haar, global business director, DuPont
Microcircuit Materials.  “We will continue to enforce our
intellectual property where we find infringement.” 
DuPont (NYSE: DD) has been bringing world-class science and
engineering to the global marketplace in the form of innovative
products, materials, and services since 1802.  The company
believes that by collaborating with customers, governments,
NGOs, and thought leaders we can help find solutions to such
global challenges as providing enough healthy food for people
everywhere, decreasing dependence on fossil fuels, and
protecting life and the environment.  For additional information
about DuPont and its commitment to inclusive innovation, please
Dan Turner
(bjh) NY 
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