Douglas D Fletcher
Inventor
Stats
- 18 US patents issued
- 28 US Applications filed
- most recent filing
This is official USPTO record data
Details
- 18 US Patents Issued
- 28 US Applications Filed
- 354 Total Citation Count
- Dec 7, 2021 Most Recent Filing
- Jan 7, 1994 Earliest Filing
Work History
| Patent Owner | Applications Filed | Year |
|---|---|---|
| 3M INNOVATIVE PROPERTIES COMPANY | 2
1 2 4 5 4 | 2002
2006 2013 2014 2015 2016 |
Inventor Addresses
| Address | Duration |
|---|---|
| 239 Tennessee Ave., Alexandria, VA 22305 | Jul 31, 01 - Jul 09, 02 |
| 310 Aspen St., Alexandria, VA 22305 | Jun 27, 95 - Jun 27, 95 |
| Canton, MI | Sep 05, 06 - Dec 13, 07 |
| Canton, MI, US | Jul 17, 03 - Jul 17, 03 |
| Woodbury, MN, US | Apr 30, 15 - Feb 14, 23 |
Technology Profile
| Technology | Matters | |
|---|---|---|
| A61F: | FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS | 5 |
| B01D: | SEPARATION | 5 |
| B42D: | BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH; MOVABLE-STRIP WRITING OR READING APPARATUS | 1 |
Patents / Publication
| Patents / Publication # | Year of Publication / Issued | Title | Citations |
|---|---|---|---|
| D978443 | 2023 | Hearing protector | 3 |
| 11504278 | 2022 | Adaptive electronic hearing protection device | 0 |
| 2022/0088,525 | 2022 | AIR FILTER CONDITION SENSING | 0 |
| 11202982 | 2021 | Air filter condition sensing | 0 |
| 2021/0346,833 | 2021 | AIR FILTER CONDITION SENSING | 0 |
We are sorry but your current selection exceeds the maximum number of portfolios (0) for this membership level.
>
Upgrade to our Level for up to -1 portfolios!.