公开(公告)号：USD986360S1

公开(公告)日：2023-05-16

申请号：US29772540

申请日：2021-03-02

Applicant: Huali Dai

Designer： Huali Dai

Abstract: FIG. 1 is a front, right, and top perspective view of a dumbbell bench, showing our design.
FIG. 2 is a rear, left, and bottom perspective view thereof.
FIG. 3 is a front elevation view thereof.
FIG. 4 is a rear elevation view thereof.
FIG. 5 is a left side elevation view thereof.
FIG. 6 is a right side elevation view thereof.
FIG. 7 is a top plan view thereof; and,
FIG. 8 is a bottom plan view thereof.
The broken lines shown in the drawings are included for the purpose of illustrating portions of the dumbbell bench that form no part of the claimed design.

公开(公告)号：US20250034072A1

公开(公告)日：2025-01-30

申请号：US18779503

申请日：2024-07-22

Applicant: Huifang DAI ,  Baolu LIU ,  Bin LI ,  Huali DAI ,  Aoxue MEI

Inventor： Huifang DAI ,  Baolu LIU ,  Bin LI ,  Huali DAI ,  Aoxue MEI

IPC: C07C45/61 ,  C07C45/64 ,  C07C319/02 ,  C12P7/28

Abstract: A method for synthesizing nature-identical raspberry ketone is provided, belonging to the technical field of pharmaceutical synthesis. The nature-identical raspberry ketone is obtained by using natural p-anisaldehyde and natural acetone as initial raw materials to allow three-step continuous reactions of basic resin-catalyzed Claisen-Schmidt condensation, enzyme-catalyzed reduction, and demethylation of sodium ethanethiolate. The synthesis method is safe and clean, and has a stable yield reaching approximately 85%, providing a basis for industrial continuous production. The synthesis method not only meets the requirements for clean production, but also saves labor costs by virtue of the continuous process, and is suitable for large-scale industrial production.