• The polymer composite consists of two materials:
1. Poly (garmar-benzyl alpha, L-glutamates) (PBLG)
2. Polymethymethacrylate (PMMA)
• The mechanical strength of the PMMA is combined with the high piezoelectricity of the PBLG to create a unique polymer that is:
1. Durable
2. Flexible
3. Very sensitive
4. Highly piezoelectric
• The material eliminates the need for static pressure equalization, so devices using the material are capable of low frequency operation and in environments with differing atmospheric pressures.
• It eliminates the need to suspend a membrane under tension, making devices that use this technology more rugged and reliable.
• The fabrication process requires neither high temperature curing or mechanical stretching, thus reducing the cost of manufacturing.
Technical Details:
Johns Hopkins University seeks a partner to commercialize a fundamentally new approach for fabricating flexible piezoelectric materials. The invention is a breakthrough in piezoelectric materials, allowing for thermally stable flexible piezoelectric film to be manufactured for the first time.
Looking for Partners:
• Piezoelectric coatings
• Pressure sensors and actuators
• Sound vector sensors
• Light-weight transducers
• Foldable speakers or speaker arrays
• Microphones and speaker phones
Patent Information:
| Title |
App Type |
Country |
Serial No. |
Patent No. |
File Date |
Issued Date |
Expire Date |
Patent Status |
| Piezoelectric Compositions |
PCT: Patent Cooperation Treaty |
United States |
12/376,882 |
8,641,919 |
5/25/2010 |
2/4/2014 |
8/8/2027 |
Granted |
| Piezoelectric Compositions |
DIV: Divisional |
United States |
14/146,325 |
9,484,524 |
1/2/2014 |
11/1/2016 |
8/8/2027 |
Granted |
