9 Optical instruments for measuring a reaction by monitoring changes in the reflection of light, namely, interferometers; laboratory imaging instruments for use in the study of biomolecules in the nature of proteins, ligands, and nucleic acids, for research purposes; laboratory instruments in the nature of interferometers for use in collecting real-time measurements to support the analysis of biological molecules at different stages of therapeutic development; probes for scientific, research, or diagnostic purposes, not for medical or veterinary purposes; probes for scientific purposes, namely, probes to which biomolecules bind over the course of a scientific, research, or diagnostic procedure; interferometric sensors; probes for scientific purposes, namely, probes to which biomolecules bind during a scientific, research, or diagnostic procedure; probes for label-free analysis of assays being probes for scientific purposes; regenerable probes for scientific purpose, namely, probes for use in multiple scientific, research, or diagnostic procedures; downloadable computer software for scientific, research, or diagnostic analysis of interferometric measurements; downloadable computer software for scientific, research, or diagnostic analysis, namely, for performing antibody titer determination and isotyping; laboratory apparatus, namely, immunoassay analyzers for measuring presence and/or concentration of biomolecules in a sample; laboratory apparatus, namely, automated immunoassay analyzers for scientific, research, or diagnostic use, not for medical purposes