Location History:
- Germantown, MD (US) (1986)
- Gaithersburg, MD (US) (1988 - 2000)
Company Filing History:
7 out of 1,391 
3 out of 33 
1 out of 853 
Years Active: 1986-2000
Title: Innovations and Contributions of Donald R. Durham
Introduction
Donald R. Durham is a notable inventor based in Gaithersburg, MD (US), recognized for his significant contributions to the field of inorganic oxide carriers and hydrophilic compositions. With a total of 11 patents to his name, Durham has made strides in developing technologies that have practical applications in various industries.
Latest Patents
Among his latest patents is a groundbreaking invention related to a porous, non-macroporous, inorganic oxide carrier body for immobilizing living cells. This innovative carrier is prepared from inorganic oxide particles, such as clay particles, with an average particle size ranging from 0.01 to 20 microns. The carrier body boasts a total pore volume of 0.05 to 1.0 cc/g and an average pore diameter of 50 to 700 angstroms, while maintaining substantially no pore volume in the range of 800 angstroms or greater. The preparation process involves forming a mixture of the particles, a liquid medium, and optional ingredients, including zeolite and activated carbon, into a shaped carrier body that may be dried and calcined. Typical shapes of the carrier include spheres, cylinders, rings, honeycombs, and shaped monoliths. This technology is particularly useful for immobilizing bacteria and other microorganisms for the treatment of contaminated waste streams or vapors, as well as for chemical synthesis applications. Another notable patent involves hydrophilic compositions containing protease produced by Vibrio, which are designed for debriding and wound healing applications.
Career Highlights
Throughout his career, Donald R. Durham has worked with prominent companies, including W.R. Grace & Co. and Genex Corporation. His work has significantly impacted the development of innovative solutions in his field.
Collaborations
Durham has collaborated with esteemed colleagues, including James George Miller and Michael J. Wax, contributing to the advancement of technology and innovation in his area of expertise.
Conclusion
Donald R. Durham's contributions to the field of inventions and innovations are noteworthy, particularly in the development of inorganic oxide carriers and hydrophilic compositions. His work continues to influence various applications, showcasing the importance of innovation in addressing contemporary challenges.