1600: Biotechnology and Organic Chemistry
- 1610 Organic Compounds: Bio-affecting, Body Treating, Drug Delivery, Steroids, Herbicides, Pesticides, Cosmetics, and Drugs
- 1620 Organic Chemistry
- 1630 Molecular Biology, Bioinformatics, Nucleic Acids, Recombinant DNA and RNA, Gene Regulation, Nucleic Acid Amplification, Animals and Plants, Combinatorial/ Computational Chemistry
- 1640 Immunology, Receptor/Ligands, Cytokines Recombinant Hormones, and Molecular Biology
- 1650 Fermentation, Microbiology, Isolated and Recombinant Proteins/Enzymes
- 1660 Plants
- 1670 Process, Nucleic acid, Protein, Carbohydrate Chemistries and Diagnostics
- 1699 Search and Classification Examiner Art Unit