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Thanks Katie for clearing up information on Geron. You're correct about
their new licensing agreement with WARF. Here's some more info from their
web site - also explains difference between human embryonic stem cells
(hES) and germ cells (hEG)
SEE:
www.geron.com

Linda
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"GERON CORPORATION AND WISCONSIN ALUMNI RESEARCH FOUNDATION RESOLVE
LAWSUIT AND SIGN NEW LICENSE AGREEMENT

MENLO PARK — January 9, 2002 — Geron Corporation (Nasdaq: GERN) and the
Wisconsin Alumni Research Foundation (“WARF”) announced today that they
have resolved a federal lawsuit and have entered into a new license for
the commercialization of human embryonic stem cell (“hESC”) technology.
The new agreement supersedes the earlier license, and resolves all issues
related to the lawsuit filed by WARF against Geron in August, 2001.

In the new license, Geron holds exclusive rights to develop therapeutic
and diagnostic products from hESC-derived neural, cardiomyocyte and
pancreatic islet cells. Geron also has non-exclusive rights to develop
therapeutic and diagnostic products from hESC-derived hematopoietic,
chondrocyte, and osteoblast cells. The agreement also grants Geron
non-exclusive rights to develop research products in the following cell
types: hepatocytes, neural cells, hematopoietic cells, osteoblasts,
pancreatic islets and myocytes.

Geron and WARF have further agreed to grant research rights to existing
hESC patents and patent filings to academic and governmental researchers
without royalties or fees. WiCell Research Institute, a WARF subsidiary,
will distribute the cell lines. Third party for-profit companies may form
collaborations with Geron or obtain licenses to Geron’s intellectual
property on market terms.

“When the disagreement between us arose, both Geron and WARF said we
expected to resolve our differences and we have done so. In this new
license, Geron has the rights we need to pursue our product development
strategies, which are therapies for neurological disorders, heart disease
and diabetes – these are large markets and our top priorities,” said
Thomas B. Okarma, Ph.D., M.D., Geron’s president and chief executive
officer. “We also plan to develop therapeutic and diagnostic products
based upon other cell types for applications in arthritis, osteoporosis
and transfusion medicine, as well as research products for use in drug
discovery and development. We anticipate collaborating with other
companies to ensure that this technology is developed as broadly as
possible. WARF looks forward to a renewed partnership with Geron,” said
Carl Gulbrandsen, managing director of WARF. “We are pleased that we are
able to dismiss the lawsuit and resolve our differences on an amicable
basis. WARF has always believed that Geron has unique technology that
holds promise in bringing effective hES cell therapies to patients in
need. The new agreement will allow Geron to succeed in its development
program and also enable a large number of scientists in academia and
other companies to invest in the field. Wide public access to Wisconsin’s
stem cell lines has always been critically important to WARF and the new
agreement assures that such access will continue.”

The Wisconsin Alumni Research Foundation (“WARF”) is an independent,
non-profit foundation chartered to support research at the UW-Madison and
the designated technology transfer organization for the university. WARF
holds the patents on Professor James Thomson’s discovery that human
embryonic stem cells can be isolated and grown in culture. Additional
information about WARF is available at http://www.warf.ws.

Geron is a biopharmaceutical company focused on developing and
commercializing therapeutic and diagnostic products for applications in
oncology and regenerative medicine, and research tools for drug
discovery. Geron’s product development programs are based upon three
patented core technologies: telomerase, human embryonic stem cells and
nuclear transfer. Additional information about Geron Corporation can be
obtained at http://www.geron.com.

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GERON ANNOUNCES GRANT OF U.S. PATENT No. 6,331,406 FOR HUMAN EMBRYONIC
GERM CELLS

MENLO PARK, CA — December 19, 2001 — Geron Corporation (Nasdaq: GERN)
announced today that the U.S. Patent Office has issued U.S. Patent No.
6,331,406, with claims directed to the use of human embryonic germ cells
in drug screening assays. The patent is licensed exclusively to Geron
from Johns Hopkins University.

Geron is the exclusive licensee of the work of Dr. John Gearhart at Johns
Hopkins that led to the successful isolation of human embryonic germ
(hEG) cells. Like human embryonic stem (hES) cells, hEG cells are
pluripotent, meaning that they are capable of developing into all cell
types in the human body. The hEG cells are now being developed at Johns
Hopkins with Geron funding for a variety of therapeutic and research
applications.

“This is the third U.S. patent to issue out of Dr. Gearhart’s work on the
hEG cells,” noted David J. Earp, J.D., Ph.D., Geron’s vice president of
intellectual property. “The two prior patents cover the hEG cells
themselves and methods of propagating them. The patent issued today is
specifically directed to use of the hEG cells for drug screening. Our
current portfolio of pluripotent stem cell intellectual property includes
more than 50 patent applications pending around the world covering many
aspects of cell growth, scale-up and differentiation into various
clinically relevant cell types.”

The research that Geron is currently funding in Dr. Gearhart’s laboratory
is focused on transplanting functional cells derived from the hEG cells
into animal models of disease in order to restore tissue function.
Several disease conditions may be amenable to treatment with cells that
are manufactured from hES or hEG cells, including Parkinson’s disease,
diabetes, spinal cord injuries, liver disease and heart disease. Geron’s
Regenerative Medicine business unit is developing such cell-based
therapies for these and other chronic diseases.

Geron’s R & D Technologies business unit is focused on producing human
cells for large scale screening of drug candidates for drug discovery as
well as toxicity and metabolism analyses. Cells such as hepatocytes,
cardiomyocytes and neural cells that Geron would manufacture from hES or
hEG cells could be produced in large, uniform lot sizes for use by
pharmaceutical companies across the entire drug discovery and development
process."
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"Human Embryonic Stem Cells: Source for Replacement Tissues

Stem cells generally are self–renewing primitive cells that can develop
into functional, differentiated cells. Human embryonic stem cells are
unique because they are pluripotent: that is, they can develop into all
cells and tissues in the body. There are two types of human embryonic
stem cells, also called hESCs: human embryonic stem (hES) cells, which
were derived by our collaborators from donated in vitro fertilized
blastocysts or very early-stage embryos; and human embryonic germ (hEG)
cells, which were derived from donated fetal material. Both hES and hEG
cells are capable of developing into all three cellular layers, including
the gut epithelium (endoderm); cartilage, bone, and smooth and striated
muscle (mesoderm); and neural epithelium, embryonic ganglia and
stratified squamous epithelium (ectoderm).

...We intend to use hESC technology to identify and assign function to
the genes that control human development; enable the development of
transplantation therapies by providing standard starting material for the
manufacture of cells and tissues; and facilitate pharmaceutical research
and development practices by providing cells for screening, and assigning
function to newly discovered genes. "

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