Charles "Charlie" A. Johnson, Ph.D. is a patent agent in Sterne Kessler’s Biotechnology & Chemical Practice Group, where he prepares and prosecutes U.S. and foreign patent applications and assists with invalidity, non-infringement, patentability, and freedom-to-operate analyses and opinions. His technical areas of expertise include small molecule organic chemistry, pharmaceutical formulations, nucleic acids, agrochemical, chemical commodities, and related chemical technologies.
Prior to joining Sterne Kessler, Charlie was a patent agent at a biopharmaceutical company where he managed patent preparation and prosecution and worked closely with his scientific counterparts to identify potentially patentable subject matter. Before going in-house, Charlie was a patent agent at a law firm in St. Louis.
Charlie received his Ph.D. in chemistry from Saint Louis University where he conducted research on stacking interactions between DNA and RNA oligonucleotides. Following graduate school, Charlie was a postdoctoral student at Vanderbilt University School of Medicine where he conducted research on N-alkyl DNA adducts. Charlie received his B.S. in Biochemistry from Rockhurst University.
- Johnson, C. A., Hudson, G. A., Hardebeck, L. K. E., Jolley, E. A.; Ren, Y., Lewis, M., and Znosko, B. M., Effect of intercalator substituent and DNA and RNA sequence on the stability of DNA- and RNA-naphthalimide complexes, Bioorg. & Med. Chem., 2015, 23, 3586-3591.
Hardebeck, L. K. E., Johnson, C. A., Hudson, G. A., Ren, Y., Watt, M., Kirkpatrick, C. C., Znosko, B. M., and Lewis, M., Predicting DNA-intercalator binding: the development of an arene-arene stacking parameter from SAPT analysis of benzene-substituted benzene complexes, J. Phys. Org. Chem., 2013, 26, 879-884.
Johnson, C. A., Bloomingdale, R. J., Ponnusamy, V. E., Tillinghast, C. A., Znosko, B. M., and Lewis, M., Reply to comment on a computational model for predicting experimental RNA and DNA nearest-neighbor free energy rankings, J. Phys. Chem. B, 2012, 116, 8333-8334.
Levengood, J. D., Rollins, C., Mishler, C. H., Johnson, C. A., Miner, G., Pajan, R., Znosko, B. M., and Tolbert, B. S., Solution structure of the HIV-1 exon splicing silencer 3, J. Mol. Biol., 2012, 415, 680-698.
Johnson, C. A., Bloomingdale, R. J., Ponnusamy, V. E., Tillinghast, C. A., Znosko, B. M., and Lewis, M., A computational model for predicting experimental RNA and DNA nearest-neighbor free energy rankings, J. Phys. Chem. B, 2011, 115, 9244-9251.