Buffers

Invitrogen Corporation is a developer, manufacturer and marketer of research tools in reagent, kit and high-throughput applications forms to customers engaged in life sciences research, drug discovery, diagnostics and the commercial manufacture of biological products.

Amtech Systems, Inc., through its subsidiaries, engages in the design, assembly, sale, and installation of capital equipment and related consumables used in the manufacture of wafers, primarily for the solar and semiconductor industries.