USPTO Concludes Patent Validity for i4i

TORONTO, July 27, 2010 - In the latest development in the i4i v Microsoft patent infringement
case, i4i is pleased to announce that today the United States Patent and
Trademark Office (PTO) has issued a Reexamination Certificate which
confirms the patentability of all claims of U.S. Patent 5,787,449 ('449)
that had been put into the reexamination proceeding by Microsoft. This
issuance of the Reexamination Certificate formally concludes the
reexamination proceeding favorably for i4i.

Loudon Owen, Chairman of i4i, says, "Put simply Microsoft lost the
trial, lost the appeal, and lost the reexamination. The PTO agreed with i4i
. i4i's patent is clearly and unequivocally valid" Mr. Owen adds, "The
protection of patents and intellectual property is vital to small inventors
and pioneers like i4i, especially when confronted by giant infringing
industry competitors like Microsoft."

Michel Vulpe, founder of i4i and co-inventor, says, "i4i is extremely
satisfied with the decision of the PTO. We filed our application in 1994
and have been on this journey with the '449 patent for more than 16 years"
Mr Vulpe adds, "Our patent claims were put under intense scrutiny by the
PTO during this reexamination, so the decision is especially meaningful as
it further re-validates the '449 patent."

In March 2007, i4i sued Microsoft for willful infringement of its '449
patent. Prior to trial, Microsoft filed an application with the PTO seeking
a reexamination of certain claims of the '449 patent. After detailed review
by the PTO in the reexamination proceeding, which took approximately 18
months, an NIRC (Notice of Intent to Issue a Reexamination Certificate) was
issued on April 28, 2010. With the Reexamination Certificate issued today,
this confirms the patentability of all the claims which had been put into
reexamination by Microsoft.

i4i is a global technology company headquartered in Toronto, Canada.
For more information on i4i v. Microsoft, selected court documents can be
found on www.i4ilp.com.

For further information: Loudon Owen - lowen@mcleanwatson.com or
+1-416-307-3271; Melony Jamieson - melony@getitdone.ca or +1-416-518-6355

For further information: Loudon Owen - lowen at mcleanwatson.com or +1-416-307-3271; Melony Jamieson - melony at getitdone.ca or +1-416-518-6355