David R Walker
Inventor
Stats
- 24 US patents issued
- 30 US Applications filed
- most recent filing
This is official USPTO record data
Details
- 24 US Patents Issued
- 30 US Applications Filed
- 713 Total Citation Count
- Nov 13, 2019 Most Recent Filing
- Apr 28, 1986 Earliest Filing
Work History
| Patent Owner | Applications Filed | Year |
|---|---|---|
| SERAWASTE SYSTEMS CORPORATION | 2
1 | 1990
1991 |
| CIENA CORPORATION | 1
| 2001
|
| GSI GROUP INC | 1
| 1997
|
| SERAWAST SYSTEMS CORPORATION | 1
| 1990
|
| LUMENTUM OPERATIONS LLC | 2
1 1 2 | 2012
2013 2015 2016 |
| FILMTEC CORPORATION | 1
| 1986
|
| SPI LASERS UK LIMITED | 1
| 1997
|
| NORTEL NETWORKS LIMITED | 1
| 2000
|
| DX RESOURCES CORPORATION | 3
| 1990
|
| dxResources Corporation | 2
1 | 1993
1995 |
| PPI Systems, Inc. | 2
| 2008
|
| PROCESS PHOTONICS | 2
| 2008
|
| COMBUSTION DESIGN CORPORATION | 1
| 1991
|
| THE DOW CHEMICAL COMPANY | 1
2 | 1986
1988 |
| VEOLIA ES INDUSTRIAL SERVICES, INC. | 1
2 | 1998
2001 |
| MEADWESTVACO CORPORATION | 2
| 2001
|
| Clark-MXR, Inc. | 1
1 | 1994
1995 |
Inventor Addresses
| Address | Duration |
|---|---|
| 2209 Lagoon Dr., League City, TX 77573 | Oct 24, 00 - Oct 24, 00 |
| Ann Arbor, MI | Nov 05, 96 - Jan 07, 97 |
| Charleston, SC | Oct 28, 03 - Oct 28, 03 |
| Charleston, SC, US | Oct 03, 02 - Oct 03, 02 |
| Clearwater, FL | Oct 01, 91 - May 28, 96 |
| Clearwater, FL, US | May 14, 20 - Jun 29, 21 |
| Houston, TX | Oct 01, 02 - Oct 01, 02 |
| Houston, TX, US | Sep 26, 02 - Sep 26, 02 |
| Kanata, CA | Oct 28, 10 - Mar 18, 14 |
| Kilmarnock, GB6 | Aug 23, 88 - Apr 25, 89 |
| New Port Richey, FL, US | Mar 05, 09 - Jun 30, 20 |
| Ottawa, CA | Sep 22, 98 - Jan 23, 18 |
| Ottawa, CA, US | Mar 03, 16 - Mar 03, 16 |
Technology Profile
| Technology | Matters | |
|---|---|---|
| A23N: | MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES, OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING-STUFFS | 1 |
| A61L: | METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES | 1 |
| B01D: | SEPARATION | 6 |
Patents / Publication
| Patents / Publication # | Year of Publication / Issued | Title | Citations |
|---|---|---|---|
| 11046925 | 2021 | System and process for producing biogas from an ethanol slurry mix | 0 |
| 10698379 | 2020 | Non-invasive method for displaying and monitoring practical data in controllers | 0 |
| 2020/0148,988 | 2020 | System And Process For Producing Biogas From An Ethanol Slurry Mix | 0 |
| 2019/0025,791 | 2019 | Non-invasive Method for Displaying and Monitoring Practical Data in Controllers | 1 |
| 10082782 | 2018 | System for displaying and monitoring practical data in controllers | 0 |
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