Company Filing History:
Years Active: 1996-2002
Title: The Innovations of Heinz E. Stapelfeldt
Introduction
Heinz E. Stapelfeldt is a notable inventor based in Pittsford, NY (US). He has made significant contributions to the field of photographic technology, particularly in the preparation of silver halide grains. With a total of 5 patents to his name, Stapelfeldt's work has had a lasting impact on the industry.
Latest Patents
One of his latest patents is the "Scalable impeller apparatus for preparing silver halide grains." This invention features a mixer designed for the preparation of silver halide grains used in photography. The apparatus includes upper and lower impellers housed within a draft tube. The bottom impeller is equipped with flat blades for micromixing silver and halide reactants, while the upper impeller has pitched blades for macromixing the bulk fluid. The design allows for independent operation of the impellers, ensuring that micromixing and macromixing occur separately. Additionally, a flow disrupter is incorporated to prevent vortexing during the mixing process.
Another significant patent is the "Process for the preparation of high chloride emulsions containing iodide." This innovation further showcases Stapelfeldt's expertise in the field.
Career Highlights
Heinz E. Stapelfeldt is associated with Eastman Kodak Company, where he has contributed to various advancements in photographic technology. His work has been instrumental in enhancing the quality and efficiency of photographic materials.
Collaborations
Throughout his career, Stapelfeldt has collaborated with notable colleagues, including Jess B. Hendricks, III and Paul T. Hahm. These collaborations have fostered innovation and development in their shared field of expertise.
Conclusion
Heinz E. Stapelfeldt's contributions to the field of photography through his innovative patents and collaborations highlight his importance as an inventor. His work continues to influence the industry, ensuring advancements in photographic technology.