ALEXANDRIA, Va., April 28 -- The following federal patents were awarded to inventors in New York. *** Processes and Systems for Removing Deposits From an Integrated Plastic Pyrolysis Vessel and a Steam Cracking Furnace ALEXANDRIA, Virginia, April 28 -- EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY, Baytown, Texas has been assigned a patent (No. US 12612559 B2, initially filed Jan. 5, 2024) developed by six inventors Kara R. Radford, Houston, Texas; David Spicer, Houston, Texas; Saurabh S. Mad  more