Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7219816 | Easily sealed and opened pre-filled, disposable pipette | Jack Yongfeng Zhang, Mary Zi-ping Luo | 2007-05-22 |
| 6827479 | Uniform small particle homogenizer and homogenizing process | Mary Ziping Luo, Jack Yongfeng Zhang | 2004-12-07 |
| 6793076 | Glass bottle protective enclosure | Mary Ziping Luo, Jack Yongfeng Zhang, Rong Zhou, Denny R. S. Ko | 2004-09-21 |
| 6551298 | Controlled medicament security enclosure system | Jack Yongfeng Zhang, Mary Ziping Luo | 2003-04-22 |
| 6457612 | Sealable and manipulable pre-filled disposable pipette | Jack Yongfeng Zhang, Mary Zi-ping Luo | 2002-10-01 |
| 6418982 | Process of bulk filling | Jack Yongfeng Zhang, Mary Ziping Luo | 2002-07-16 |
| 6343717 | Pre-filled disposable pipettes | Jack Yongfeng Zhang, Mary Ziping Luo | 2002-02-05 |
| 6139533 | Hypodermic needle capping device | Gunther Maier, Jack Yongfeng Zhang, Mary Ziping Luo | 2000-10-31 |
| 5205000 | Dual water-level toilet flushing apparatus | Mary Zi-ping Luo, Jack Yongfeng Zhang | 1993-04-27 |