Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12013155 | Self-contained in-ground geothermal generator and heat exchanger with in-line pump used in several alternative applications including the restoration of the Salton Sea | — | 2024-06-18 |
| 11098926 | Self-contained in-ground geothermal generator and heat exchanger with in-line pump used in several alternative applications including the restoration of the salton sea | — | 2021-08-24 |
| 9995286 | Self-contained in-ground geothermal generator and heat exchanger with in-line pump and several alternative applications | — | 2018-06-12 |
| 9982513 | Apparatus for drilling deeper and wider well bore with casing | — | 2018-05-29 |
| 9978466 | Self-contained in-ground geothermal generator and heat exchanger with in-line pump | — | 2018-05-22 |
| 9909782 | Self-contained heat-exchanger for electricity generation | — | 2018-03-06 |
| 9206650 | Apparatus for drilling faster, deeper and wider well bore | — | 2015-12-08 |
| 8713940 | Self-contained in-ground geothermal generator | — | 2014-05-06 |
| 8281591 | Self contained in-ground geothermal generator | — | 2012-10-09 |
| 7917981 | Methods of making adjustable air cushion insoles and resulting products | — | 2011-04-05 |
| 7849690 | Self contained in-ground geothermal generator | — | 2010-12-14 |
| 7451555 | Methods of making adjustable air cushion insoles and resulting products | — | 2008-11-18 |
| 7017285 | Inflatable lining for footwear with protective and comfortable coatings or surrounds | — | 2006-03-28 |
| 6976321 | Adjustable air cushion insole with additional upper chamber | — | 2005-12-20 |
| 6510624 | Inflatable lining for footwear with protective and comfortable coatings or surrounds | — | 2003-01-28 |
| 6014823 | Inflatable sole lining for shoes and boots | — | 2000-01-18 |
| 5846063 | Miniature universal pump and valve for inflatable liners | — | 1998-12-08 |
| 5025575 | Inflatable sole lining for shoes and boots | — | 1991-06-25 |
| 4991317 | Inflatable sole lining for shoes and boots | — | 1991-02-12 |
| 4941271 | Boot with frictional heat generator and forced air circulation | — | 1990-07-17 |
| 4845338 | Inflatable boot liner with electrical generator and heater | — | 1989-07-04 |
| 4823482 | Inner shoe with heat engine for boot or shoe | — | 1989-04-25 |
| 4782602 | Shoe with foot warmer including an electrical generator | — | 1988-11-08 |
| 4756095 | Footwarmer for shoe | — | 1988-07-12 |
| 4736530 | Shoe with heat engine and reversible heat engine | Ristic Vladislav | 1988-04-12 |