U.S. federal trademark · Serial No. 90294886
a ligature of the respective English letters N, H and C, where the NHC are all combined into one consolidated logo, situating the letter "h" directly in the center of the letter "n" with the letter "c" wrapping around the (top and bottom) tips of the letters "n" and "h"
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.