1.     Polymer matrix energy storage device and method of making the same, A. Jacobsen, P. Liu, K. W. Kirby, E. Sherman, US Patent 8,741,486

2.     Methods for fabricating inorganic proton-conducting coatings for fuel-cell membranes, P. Liu, J. Hicks-Garner, C. Zhou, A. F. Gross, J. J. Vajo, US Patent 8,735,013

3.     Aluminum batteries comprising metal-oxide, metal-fluoride, metal-sulfide, or sulfur cathodes, J. J. Vajo, A. F. Gross, P. Liu, J. Hicks-Garner, E. Sherman, S. Van Atta, US Patent 8,715,853

4.     Lithium battery structures, P. Liu, US Patent 8,623,556

5.     Combined subgasket and membrane support, G. W. Fly, Y.-H. Lai, J. A. Rock, K. E. Newman, P. Liu, A. J. Jacobsen, W. B. Carter, P. D. Brewer, US Patent 8,580,454

6.     Fuel cell fabrication using photopolymer based processes, J. A. Rock, Y.-H. Lai, K. E. Newman, G. W. Fly, P. Liu, A. J. Jacobsen, W. B. Carter, P. D. Brewer, US Patent 8,524,412

7.     Supercapacitor cells and micro-supercapacitors, D. T. Chang, P. R Patterson, P. Liu, US Patent 8,503,161

8.     Lithium battery structures, P. Liu, US Patent 8,481,195

9.     Combined subgasket and membrane support, G. W. Fly, Y.-H. Lai, J. A. Rock, K. E. Newman, P. Liu, A. J. Jacobsen, W. B. Carter, P. D. Brewer, US Patent 8,389,177

10.  Encapsulated fire-retardant materials to improve battery safety, W. Li, P. Liu, US Patent 8,309,240

11.  Fuel cell fabrication using photopolymer based processes, J. A. Rock, Y.-H. Lai, K. E. Newman, G. W. Fly, P. Liu, A. J. Jacobsen, W. B. Carter, P. D. Brewer, US Patent 8,268,510

12.  Method and Pd/V2 O5 device for H2 detection, P. Liu, C. E. Tracy, J. R. Pitts, R. D. Smith, S.-H. Lee, US Patent 8,084,265

13.  Chemically modified catalyzed support particles for electrochemical cells, T. T. Salguero, E. Sherman, P. Liu, US Patent 7,993,797

14.  Method of coating a surface of a fuel cell plate, W. Li, P. Liu, J. J Zinck, C. Zhou, T. T. Salguero, US Patent 7,977,012

15.  Actuator assembly, P. Liu, C. Massey, L. Momoda, G. McKnight, W. Barvosa-Carter, A. Jacobsen, US Patent 7,944,007

16.  Solid state actuator capable of plating and plating material storage, P. Liu, C.Massey, L. Momoda, G. McKnight, W. Barvosa-Carter, and A. Jacobosen, US Patent 7,939,899

17.  Hydrogen storage compositions, W. Li, J. J Vajo, R. W Cumberland, P. Liu, US Patent 7,927,507

18.  H2O doped WO3, ultra-fast, high-sensitivity hydrogen sensors, P. Liu, C. E. Tracy, R. Pitts, and S.-H. Lee, US Patent 7,910,373

19.  Metal filled porous carbon, A. F. Gross, J. J. Vajo, R. W. Cumberland, P. Liu, T. T. Salguero, US Patent 7,910,199

20.  Electrochemical regeneration of chemical hydrides, J. Vajo and P. Liu, US Patent 7,776,201

21.  Thin film buried anode battery, S.-H. Lee, C. E. Tracy, and P. Liu, US Patent 7,632,602. Licensed.

22.  Photo-oxidation catalysts, J. Roland Pitts, Ping Liu, R. Davis Smith, US Patent 7,560,409. Licensed.

23.  Pd/V2O5 device for H2 detection, P. Liu, S.-H. Lee, R. Pitts, C. E. Tracy, and D. Smith, US Patent 7,419,635

24.  Actuation using lithium/metal alloys and actuator device, P. Liu, C. Massey, L. Momoda, G. McKnight, W. Barvosa-Carter, and A. Jacobosen, US Patent 7,298,017

25.  Layered inorganic with pillared organic nanocomposite actuators, P. Liu, C. Massey, L. Momoda, G. McKnight, and A. Jacobosen, US Patent 7,274,128

26.  Hydrogen permeable protective coating for a catalytic surface, P. Liu, C. E. Tracy, J. R. Pitts, and S.-H. Lee, US Patent 7,233,034

27.  Solid state actuation using graphite intercalation compounds, P. Liu, C. Massey, G. McKnight, and G. Herrera, US Patent 7,205,699

28.  Buried anode lithium thin film battery and process for forming the same, S.-H. Lee, C. E. Tracy, and P. Liu, US Patent 6,805,999. Licensed.

29.  Pd/Ni-WO3 anodic double layer gasochromic device, S.-H. Lee, C. E. Tracy, R. Pitts, and P. Liu, US Patent 6,723,566

30.  Plasma enhanced chemical vapor deposition method of forming vanadium oxide films and vanadium oxide thin-films prepared thereby, J.-G. Zhang, C. E. Tracy, D. K. Benson, J. A. Turner, and P. Liu, US Patent 6,156,395