Exhibit 10.43 PURCHASE, SALE AND LICENSE AGREEMENT THIS PURCHASE, SALE AND LICENSE AGREEMENT ("Agreement") is entered into as of May 1, 2003 by and among PLANET POLYMER TECHNOLOGIES, INC., a California corporation ("Planet"), and RYER ENTERPRISES LLC,...Purchase, Sale and License Agreement • August 14th, 2003 • Planet Polymer Technologies Inc • Services-commercial physical & biological research • California
