Company Filing History:
Years Active: 1998-2006
Title: Innovations of Donald G. Sheer
Introduction
Donald G. Sheer is a notable inventor based in Norfolk, MA (US). He holds a total of six patents, showcasing his contributions to the field of sample preparation and separation technologies. His work has significantly advanced methods for handling micromass samples in various applications.
Latest Patents
One of his latest patents is titled "Cast membrane structures for sample preparation." This invention describes a method for casting-in-place composite and/or non-filled structures that serve as sorptive or reactive media or for size-based separations. The invention allows for the inclusion of a large amount of adsorptive particles in a polymer while maintaining the three-dimensional structure of the membrane. In one preferred embodiment, the composite structures consist of particles entrapped within a porous polymeric substrate, which are cast in-place into a housing, such as a pipette tip. This design provides an effective platform for micromass handling. The appropriate selection of particle chemistry enables various separation or purification operations, including selective bind/elute chromatography operations, on sample mass loads less than 1 microgram in volumes of a few microliters. The invention also encompasses the composite structures and sample preparation devices containing them. In another preferred embodiment, self-retaining, self-supporting structures are cast in situ in a suitable housing, acting as a semi-permeable barrier for size-based separations.
Career Highlights
Throughout his career, Donald G. Sheer has worked with prominent companies, including Millipore Corporation and Millipore Investment Holdings, Ltd. His experience in these organizations has contributed to his expertise in the field of sample preparation technologies.
Collaborations
Donald has collaborated with notable individuals such as William Kopaciewicz and Todd E. Arnold. These collaborations have likely enriched his work and led to innovative advancements in his projects.
Conclusion
Donald G. Sheer is a distinguished inventor whose work in sample preparation technologies has made a significant impact. His innovative patents and collaborations reflect his dedication to advancing the field.