Nieschwitz; Darrell V.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Nieschwitz; Darrell V..The latest application filed is for "vacuum hose having an integrated switch".
- Nieschwitz; Darrell V. - Louisville OH
- Nieschwitz; Darrell V. - Alliance OH
| Patent | Date |
|---|---|
| Central vacuum cleaning system Grant 11,311,158 - Coltrin , et al. April 26, 2 | 2022-04-26 |
| Vacuum Hose Having An Integrated Switch App 20220039624 - Nieschwitz; Darrell V. ; et al. | 2022-02-10 |
| Central vacuum system and inlet valves therefor Grant 11,096,534 - Nieschwitz , et al. August 24, 2 | 2021-08-24 |
| Vacuum Inlet Valve Assembly With Sliding Pins App 20210244247 - Nieschwitz; Darrell V. ; et al. | 2021-08-12 |
| Adapter For A Vacuum Hose App 20210235952 - Nieschwitz; Darrell V. ; et al. | 2021-08-05 |
| Central Vacuum System And Inlet Valves Therefor App 20210196091 - Nieschwitz; Darrell V. ; et al. | 2021-07-01 |
| Central vacuum system and inlet valves therefor Grant 11,019,967 - Nieschwitz , et al. June 1, 2 | 2021-06-01 |
| Central Vacuum System And Inlet Valves Therefor App 20210145226 - Nieschwitz; Darrell V. ; et al. | 2021-05-20 |
| Central vacuum system and inlet valves therefor Grant 10,973,382 - Nieschwitz , et al. April 13, 2 | 2021-04-13 |
| Central vacuum system and inlet valves therefor Grant 10,820,763 - Nieschwitz , et al. November 3, 2 | 2020-11-03 |
| Central Vacuum System And Inlet Valves Therefor App 20200305666 - Nieschwitz; Darrell V. ; et al. | 2020-10-01 |
| Vacuum Inlet Valve Assembly With A Closeable Seal App 20200281431 - Nieschwitz; Darrell V. ; et al. | 2020-09-10 |
| Central Vacuum System And Inlet Valves Therefor App 20200178745 - Nieschwitz; Darrell V. ; et al. | 2020-06-11 |
| Hose valve assembly for vacuum cleaning device Grant D885,000 - Metz , et al. | 2020-05-19 |
| Vacuum Inlet Valve Assembly App 20200100634 - Nieschwitz; Darrell V. ; et al. | 2020-04-02 |
| Central Vacuum System And Inlet Valves Therefor App 20200008638 - Nieschwitz; Darrell V. ; et al. | 2020-01-09 |
| Central vacuum system and inlet valves therefor Grant 10,433,690 - Nieschwitz , et al. O | 2019-10-08 |
| Central vacuum cleaning system Grant 10,405,713 - Coltrin , et al. Sept | 2019-09-10 |
| Central Vacuum System And Inlet Valves Therefor App 20190191946 - Nieschwitz; Darrell V. ; et al. | 2019-06-27 |
| Central Vacuum System And Inlet Valves Therefor App 20180153364 - Nieschwitz; Darrell V. ; et al. | 2018-06-07 |
| Central Vacuum System And Inlet Valves Therefor App 20170332858 - Nieschwitz; Darrell V. ; et al. | 2017-11-23 |
| Vacuum tube locking collar Grant 9,782,047 - Nieschwitz , et al. October 10, 2 | 2017-10-10 |
| Vacuum Tube Locking Collar App 20150190023 - Nieschwitz; Darrell V. ; et al. | 2015-07-09 |
| Vacuum hose storage system Grant 7,945,990 - Gabric , et al. May 24, 2 | 2011-05-24 |
| Vacuum hose storage system App 20090188072 - Gabric; Andrew L. ; et al. | 2009-07-30 |
| Vacuum Hose Storage System App 20090188073 - Gabric; Andrew L. ; et al. | 2009-07-30 |
| Acoustic foam sound reducer for vacuum power unit Grant 7,434,657 - Nieschwitz , et al. October 14, 2 | 2008-10-14 |
| Vacuum canister and mounting bracket for use therewith Grant 7,080,425 - Smith , et al. July 25, 2 | 2006-07-25 |
| Vacuum canister with auxiliary intake valve Grant 7,051,398 - Smith , et al. May 30, 2 | 2006-05-30 |
| Acoustic foam sound reducer for vacuum power unit App 20060070797 - Nieschwitz; Darrell V. ; et al. | 2006-04-06 |
| Vacuum canister with auxiliary intake valve App 20040177468 - Smith, James F. ; et al. | 2004-09-16 |
| Vacuum canister and mounting bracket for use therewith App 20040172782 - Smith, James F. ; et al. | 2004-09-09 |
| Acoustic foam sound reducer for vacuum power unit Grant D494,331 - Nieschwitz , et al. August 10, 2 | 2004-08-10 |
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