Stephen John Garger, Jr

Title: **Stephen John Garger, Jr.: Innovator in Polyphenolic Polymer Production**

Introduction

Stephen John Garger, Jr. is a notable inventor based in Vacaville, California. With two patents to his name, he has made significant contributions to the field of biochemistry, particularly in the production and modification of polyphenolic polymers.

Latest Patents

Garger’s latest patents include the method for making stable extracellular tyrosinase and a process for the in vitro production of chemically modified polyphenolic polymer (PPP). His innovative method begins with producing stable, highly active extracellular tyrosinase from genetically transformed microorganisms, such as *Streptomyces antibioticus*. This tyrosinase is then incubated with a reaction substrate like L-tyrosine, hydrolyzed protein, or an oligopeptide combined with L-tyrosine.

The inventive process allows for adjustments in the ratio of the oligopeptide/tyrosine combination and variations in tyrosinase concentrations, enabling the modification of the PPP's color, molecular size, and spectral absorbance properties. Additionally, oxidants such as hydrogen peroxide or hypochlorite can further alter the color of the PPP. The resulting polymer can be fractionated using molecular weight cut-off ultrafiltration, while organic solvents can also be incorporated to produce PPPs with varied yet reproducible physical properties.

Career Highlights

Stephen Garger is affiliated with Biosource Technologies, Inc., where he contributes his expertise in biochemistry to the advancement of innovative technologies. His work has furthered the understanding and applications of enzymes in the production of complex biopolymers.

Collaborations

Throughout his career, Garger has collaborated with skilled professionals, including his coworkers Guy Richard della-Cioppa and Richard Barry Holtz. Their collective efforts have strengthened research initiatives and propelled innovative projects forward.

Conclusion

In conclusion, Stephen John Garger, Jr. stands out as an inventor who has significantly impacted the production of polyphenolic polymers through his inventive methodologies. His patents not only showcase his innovative spirit but also contribute valuable knowledge to the fields of biochemistry and material science. Through his work at Biosource Technologies, Inc., he continues to inspire progress in the development of new biotechnological applications.