Company Filing History:
Years Active: 2011-2013
Title: Innovations by Durga V Subramanian
Introduction
Durga V Subramanian is a notable inventor based in Lexington, MA (US). He has made significant contributions to the field of cement technology, holding 2 patents that focus on enhancing the properties of blended cements. His work is instrumental in improving the performance and sustainability of construction materials.
Latest Patents
One of his latest patents is titled "Suppression of antagonistic hydration reactions in blended cements." This invention presents a method for suppressing antagonistic hydration reactions in Portland fly ash cement. It involves the use of unponded fly ash that is pre-hydrated, preferably as an aqueous slurry. The fly ash, which contains an alkaline earth metal oxide of at least 10% by weight, is soaked to accelerate the hydration reaction when mixed with cement and water. This innovation results in blended Portland cement/fly ash compositions that exhibit higher early strength and shorter set times compared to untreated blends.
Another significant patent by Subramanian is "Coordinated metal compounds for reducing chromium." This invention involves methods and compositions that utilize nitrogen-containing coordinated metal compounds to stabilize chromium VI reducing metal cations. The exemplary uses of this invention include processes for making cement, and the compositions encompass cement additives, concrete admixtures, as well as hydratable cement and cementitious compositions.
Career Highlights
Durga V Subramanian is currently associated with W.R. Grace & Co. - Conn., where he continues to innovate in the field of cement and construction materials. His expertise and inventions have contributed to advancements in sustainable building practices.
Collaborations
He collaborates with talented professionals in his field, including his coworker Josephine H Cheung, who brings valuable insights and expertise to their projects.
Conclusion
Durga V Subramanian's contributions to cement technology through his innovative patents demonstrate his commitment to enhancing construction materials. His work not only improves the performance of blended cements but also addresses environmental concerns in the industry.
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.