3m Innovative Properties Company

Robert Leland Wee Smithson

Malte Korten

Helmar B Mayr

Bruce D Orensteen

Carsten Franke

Jeffrey Bruce Hill

Stephen Paul Le Blanc

A method of building up a dental object includes steps of (i) determining the three-dimensional shape of the object; (ii) mixing at least a first and a second component to form a hardenable composition; (iii) depositing the hardenable composition through a nozzle; (iv) performing steps (ii) and (iii) in combination with moving the nozzle by computer control based on said data. The invention helps providing an object like a dental restoration at maximized geometric and optical quality.

Method of and system for building up a dental object

A method of marking prismatic retroreflective sheeting includes providing prismatic retroreflective sheeting having a front side and a back side, the back side having prismatic features and directing a radiation source at the back side of the prismatic retroreflective sheeting and irradiating a plurality of the prismatic features. The radiation forms a mark in the prismatic retroreflective sheeting.

Irradiation marking of retroreflective sheeting

Method of making a lens on an optical fiber or waveguide using a femtosecond laser. The lens may be further smoothed by the application of heat.

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Mahtomedi, MN, United States of America

Robert Leland Wee Smithson