Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11676559 | Laminate faced honeycomb bracing structure for stringed instrument | — | 2023-06-13 |
| 11011143 | Carbon fiber guitar | — | 2021-05-18 |
| 10074348 | Laminate faced honeycomb bracing structure for stringed instrument | — | 2018-09-11 |
| 10032439 | Carbon fiber guitar | — | 2018-07-24 |
| 9685145 | Carbon fiber guitar | — | 2017-06-20 |
| 9171528 | Carbon fiber guitar | — | 2015-10-27 |
| RE38433 | High performance, thin metal lined, composite overwrapped pressure vessel | Norman C. Elfer, Torben Brandt, Robert O. Edman | 2004-02-24 |
| 6521296 | High performance structural laminate composite material for use to 1000° F. and above, apparatus for and method of manufacturing same, and articles made with same | Robert William Biggs, Jr., Venu Prasad Bodepudi, John A. Cranston | 2003-02-18 |
| 6401963 | High performance, thin metal lined, composite overwrapped pressure vessel | Norman C. Elfer, Torben Brandt, Robert O. Edman | 2002-06-11 |
| 6087568 | Acoustically tailored, composite material stringed instrument | — | 2000-07-11 |
| 6013361 | High performance structural laminate composite material for use to 1000.degree. F and above, apparatus for and method of manufacturing same, and articles made with same | Robert William Biggs, Jr., Venu Prasad Bodepudi, John A. Cranston | 2000-01-11 |
| 5822838 | High performance, thin metal lined, composite overwrapped pressure vessel | Norman C. Elfer | 1998-10-20 |
| 5419139 | Composite cryogenic tank apparatus | Celia M. Blum, Elizabeth P. Kirn | 1995-05-30 |
| 5403537 | Method for forming composite structures | Michael G. Ferrell, Venu Prasad Bodepudi, Robert William Biggs, Jr. | 1995-04-04 |