Company Filing History:
16 out of 35 
4 out of 4 
3 out of 5 Years Active: 1999-2011
Title: David A. Evans: A Pioneer in Document Relevance Analysis
Introduction
David A. Evans is an accomplished inventor based in Pittsburgh, PA, known for his innovative contributions to technology and data analysis. With a impressive portfolio of 24 patents, Evans has significantly impacted the field of document relevance and similarity structures.
Latest Patents
Among his notable recent achievements is the patent titled “Method and apparatus for constructing a compact similarity structure and for using the same in analyzing document relevance.” This patent describes a computer-readable medium that encompasses a data structure designed to provide information about the levels of similarity between pairs of documents. The innovative structure comprises a multitude of similarity values that articulate the relational similarities of one document relative to another within various pairs. Notably, the design allows for efficient representation of similarity values, with fewer entries required if the values are symmetric or asymmetric concerning document pairing.
Career Highlights
Throughout his career, David A. Evans has held significant roles at prominent companies, including Claritech Corporation and Justsystems Evans Research, Inc. His work has been characterized by a strong focus on enhancing the efficiency and accuracy of document analysis through innovative methodologies.
Collaborations
Evans has collaborated with distinguished professionals in the field, including his coworkers James G. Shanahan and Michael J. McInerny. These partnerships have fostered the development of cutting-edge technologies and have paved the way for advancements in document relevance analysis.
Conclusion
David A. Evans stands out as a notable inventor in the realm of technology, particularly in the analysis of document relevance. His contributions continue to influence the industry, showcasing his commitment to innovation and excellence in research. With his extensive patent portfolio, Evans remains a key figure in advancing the capabilities of data processing and similarity measurement.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.