AstraZeneca scientists spent five years devising a three-layer pellet to protect Prilosec in the stomach.

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Herman Cain wants to bake up a new three-layer tax cake to replace the current federal tax stew.

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Astra claims to have a unique three-layer formulation that protects the drug from being degraded by stomach acid.

FORBES: Hard to Swallow

In each case, the resulting image is focused by a clever arrangement of lenses on to a three-layer sandwich made of special materials.

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The three-layer version, in particular, provides a unique hybrid power supply.

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Each purple Prilosec capsule contains about 100 of the three-layer pellets.

FORBES: Hard to Swallow

The dual "TRUE (Three-layer Responsive Ultimate Engine) II" image processing engine dedicated to Foveon X3 direct image sensors improves the processing speed and overall quality of the final image.

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Behind a tinted glass panel 18-carat gold powder, laid down by a robot arm, sparkles as a laser fuses the metal into complex three-dimensional shapes, layer by layer.

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Three-dimensional printers, which gradually layer materials to form shapes, are widely used in manufacturing.

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