They
can spend less time grinding, increasing their output and lowering the
total grinding and finishing costs.

One of the top
100 industrial companies in the world, Saint-Gobain's 2004 sales
approximated $40 billion.

Altairnano continues to expend significant resources to pioneer, develop
and protect advanced ceramic nanotechnology used in numerous product
applications.

Altairnano is a leading supplier and innovator of advanced ceramic
nanomaterial technology. Such
forward-looking statements speak only as of the date of this release.

superconductor lavica

intertec steatite

altairnano.

cordierite silicates

On-the-job tests of Charger Plus wheels
have proven that the increased ratio of aggressive grinding and
cutting zirconia alumina grain in Charger Plus wheels produces a 30%
average performance improvement.S.' The
patent describes the process and underlying technology for the manufacture
of mixed metal oxides and metal oxide compounds from aqueous solutions.
The Life Sciences Division is pursuing market applications in
pharmaceuticals , drug delivery, dental materials and other medical markets.

silicates zircon

ALTAIR NANOTECHNOLOGIES, INC. The
company expressly disclaims any obligation to update or revise any
forward-looking statements found herein to reflect any changes in company
expectations or results or any change in events.

aerogels meh

The blending of these two abrasive types results in a high-performance
wheel that is value priced. (NASDAQ: ALTI) today
announced that the U.
-- Nano-structured lithium titanate spinel electrode materials used in
high power lithium ion batteries.
-- Stabilized Zirconia materials for use as nano-sized, spray-grade
powers for thermal coatings and for nano-structured dental products.

2212 micronised

Operators can grind faster with less force and less fatigue.S. Patent Office issued Altair U.

refractories titanate

The patent extends Altairnano's platform technology and expands
Altairnano's intellectual property for manufacture of metal oxide
nano-structured materials.
-- Nano-sized titanium dioxide used as photo-catalytic materials to
remove air born contaminates like smoke or food odors and for self-cleaning
surfaces. In addition, other risks are identified in the company's most
recent Annual Report on Form 10-K, as filed with the SEC.

dissipation aerogels

The company is also
a leading distributor of building products in Europe.nortonabrasives. The process is currently used to manufacture
the following Altairnano products:

-- Titanium dioxide pigment, as embodied in Altairnano's proprietary
Hydrochloride Pigment process (AHP).

metalized tpl

paratech tpl

com

The Norton web site is www.

steatite yttria

Norton is a brand of Saint-Gobain Abrasives, a division of
Saint-Gobain.
For additional information on Altairnano and its nanomaterials, visit
www. These risks and
uncertainties include, without limitation, the risks that any patents
granted to Altairnano may be invalidated or circumvented, that competitors
may develop alternative processes that are similar or superior to those
patented by Altairnano , that the products referenced in this release (or
end products incorporating such products) will not be developed to the
point of commercialization, that, even if commercialized, no market will
exist for such products or that Altair or its partners will fail to
effectively market to end products produced using Altairnano's proprietary
processes.

aerogels borate

----

-- Zirconia Alumina Grain Improves Performance by 30% on Broad
Range of Materials --

The new Charger(TM) Plus wheels for weld, metal fabrication,
foundry, construction, pipeline and petrochemical applications feature
a blend of advanced performance zirconia alumina and aluminum oxide. Plus, the longer wheel life
provides the added benefit of less downtime changing wheels.

zirconia metalized

Charger Plus Type 27 1/8-inch and 1/4-inch thick grinding and
cutting wheels are available in 4, 4 1/2, 5, 6, 7 and 9-inch diameters
with both 7/8 and 5/8-11 center holes. Saint-Gobain Corporation is the holding company for the
U . In the United States and Canada,
Saint-Gobain employs more than 25,000 people, and has about 180
manufacturing locations.saint-gobain. Forward-looking statements, which are included in accordance
with the "safe harbor" provisions of the Private Securities Litigation
Reform Act of 1995, may involve risks, uncertainties and other factors that
may cause the company's actual results and performance in future periods to
be materially different from any future results or performance suggested by
the forward-looking statements in this release.

micronised crucibles

Business Editors

WORCESTER, Mass.- and Canadian-based businesses of Compagnie de Saint-Gobain
(Paris), a leading producer of construction products (building
materials, insulation and piping), high-performance materials
(abrasives, industrial ceramics, high-performance plastics, and
reinforcements), flat glass, and glass containers.
Altair Nanotechnologies, Inc. Patent 6,974,566 a
'Method For Producing Mixed Metal Oxides and Metal Oxide Compounds.
The Performance Materials Division is focused on market applications in
advanced materials for paints and coatings; air and water treatment and
alternative energy including new lithium ion battery electrode materials.com

Forward-Looking Statements

This release may contain forward-looking statements as well as historical
information.

tpl lavica

Based in Reno, Nevada, Altairnano has assembled a
unique team of materials scientists who, coupled in collaborative ventures
with industry partners and leading academic centers, have pioneered an
array of intellectual property and products .

steatite intertec

Maximize Productivity with New Norton Charger Plus Depressed Center and Saucer Wheels

Type 28 saucer wheels are
available in 7 and 9-inch diameters, 1/4-inch thickness and 5/8-11
center holes. The company has scalable manufacturing
capability to meet emerging nanomaterials demands.

zirconia unshaped

superconductor intertec

-- Aluminum -Titanium and yttrium oxide used in nano-sized thermal spray
grade powders.

crucibles tpl

tpl titanate

Saint-Gobain's web site is
www.

superconductor lavica

PRESS RELEASE Altair Nanotechnologies Expands Intellectual Property Portfolio With New U.S. Patent Issue

aerogels thermostat

lavica cordierite

com

S. Altairnano's two
divisions, Life Sciences and Performance Materials, are focused on
applications where its nanotechnology may enable new high growth markets .

micronised tpl

Altairnano's robust proprietary technology platforms produce a variety of
crystalline and non-crystalline nanomaterials of unique structure,
performance, quality and cost.

metalized cordierite

---

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