Liu; Li H.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Liu; Li H..The latest application filed is for "vacuum cleaner with screen cage".
- Liu; Li H. - South Williamsport PA US
- Liu; Li H. - Tucson AZ
| Patent | Date |
|---|---|
| Vacuum cleaner with screen cage Grant 9,198,552 - Wolfe , et al. December 1, 2 | 2015-12-01 |
| Combination vacuum cleaner, dolly, and mounting bracket Grant 8,707,497 - Liu April 29, 2 | 2014-04-29 |
| Vacuum Cleaner with Screen Cage App 20130276262 - Wolfe; Melvin E. ; et al. | 2013-10-24 |
| Vacuum cleaner with recirculated cooling air Grant 8,533,906 - Liu September 17, 2 | 2013-09-17 |
| Vacuum cleaner Grant D688,842 - Liu , et al. August 27, 2 | 2013-08-27 |
| Vacuum cleaner Grant D683,507 - Liu , et al. May 28, 2 | 2013-05-28 |
| Vacuum Cleaner with Recirculated Cooling Air App 20130007984 - Liu; Li H. | 2013-01-10 |
| Vacuum with rechargeable battery Grant 8,015,661 - Baer , et al. September 13, 2 | 2011-09-13 |
| Combination vacuum cleaner, dolly, and mounting bracket App 20110107547 - Liu; Li H. | 2011-05-12 |
| Wall hanging vacuum cleaner Grant 7,555,809 - Liu July 7, 2 | 2009-07-07 |
| Vacuum cleaner Grant D581,114 - Crevling, Jr. , et al. November 18, 2 | 2008-11-18 |
| Wall hanging vacuum cleaner App 20080276411 - Liu; Li H. | 2008-11-13 |
| Handheld vacuum Grant D537,578 - Crevling, Jr. , et al. February 27, 2 | 2007-02-27 |
| Battery cartridge Grant D521,445 - Liu May 23, 2 | 2006-05-23 |
| Battery cartridge Grant D521,446 - Liu May 23, 2 | 2006-05-23 |
| Battery cartridge Grant D520,444 - Liu May 9, 2 | 2006-05-09 |
| Vacuum with rechargeable battery App 20050155177 - Baer, Mark E. ; et al. | 2005-07-21 |
| Vacuum cleaner mounting assembly Grant 6,557,206 - Liu May 6, 2 | 2003-05-06 |
| Vacuum cleaner filter assembly Grant 6,440,191 - Berfield , et al. August 27, 2 | 2002-08-27 |
| Vacuum cleaner having a dual filter assembly Grant 6,113,663 - Liu September 5, 2 | 2000-09-05 |
| Dual filter assembly for a vacuum cleaner Grant 6,110,248 - Liu August 29, 2 | 2000-08-29 |
| Vacuum cleaner tank Grant D429,394 - Griffin , et al. August 8, 2 | 2000-08-08 |
| Vacuum cleaner Grant D429,042 - Griffin , et al. August 1, 2 | 2000-08-01 |
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