Yen, Richard C.K. Trademarks
ADVTX
Providing medical and scientific research information in the field of pharmaceuticals and clinical trials
Owned by: Yen, Richard C.K.
Serial Number: 77906406
SEDILOCK
Apparatus and instruments for use in the purification, separation and sterilization of liquids and gases used in the biotechnology…
Owned by: Yen, Richard C.K. and Ngai Steven S.
Serial Number: 85062283
MAGNICLE
Magnetic fluid for industrial purposes
Owned by: YEN, RICHARD C. K.
Serial Number: 85224639
