David R Stevens

Title: Innovations and Contributions of David R. Stevens

Introduction

David R. Stevens is a notable inventor based in Fremont, California, recognized for his significant contributions to the field of viral vaccines. With a total of five patents to his name, Stevens has made strides in developing innovative methods for vaccine preparation that enhance the efficacy and safety of immunizations.

Latest Patents

Among his latest patents, Stevens has developed a method for the preparation of inactivated viral vaccines. This innovative approach employs psoralen-inactivation of live viruses in a non-oxidizing atmosphere, which helps retain the antigenic characteristics of the viruses. By excluding oxygen and other oxidizing species from the inactivation medium, the degradation of antigen characteristics caused by ultraviolet light irradiation is largely prevented. The resulting inactivated viruses are utilized in vaccine preparations aimed at inhibiting viral infections. Another significant patent is for the FVR vaccine, which involves the preparation of novel vaccines for feline viral rhinotracheitis. This vaccine is created through the psoralen inactivation of live Feline Herpesvirus I, using ultraviolet radiation in the presence of an inactivating furocoumarin. The inactivated viruses produced are suitable as immunogenic substances in vaccines for inoculating hosts susceptible to feline viral rhinotracheitis.

Career Highlights

Throughout his career, David R. Stevens has worked with various organizations, including the Advanced Genetics Research Institute and Diamond Scientific Company. His work in these companies has contributed to advancements in genetic research and vaccine development.

Collaborations

Stevens has collaborated with notable colleagues, including Gary P. Wiesehahn and Richard E. Giles, who have played a role in his research endeavors.

Conclusion

David R. Stevens has made significant contributions to the field of vaccine development through his innovative patents and collaborations. His work continues to impact the health and safety of both humans and animals.