Northwestern University Robert R. McCormick School of Engineering and Applied Science

Advanced Manufacturing Processes Laboratory



  1. Cao, J. and Kinsey, B., ‘Adaptive Method and Apparatus for Forming Tailor Welded Blank’, U.S. Patent No. 5,941,110, August 24, 1999.

  2. Cao, J., Lee, J.H. and Peshkin, M., ‘Real-time Draw-in Sensors and Methods of Fabrication’, U.S. Patent No.6,769,280, August 3, 2004.

  3. Cao, J., Swanson, A. and Davis, T. “Microforming Method and Apparatus,” US Patent No 8,408,039 B2, April 2, 2013.

  4. Smith, K. S., Woody, B., Ziegert, J. and Cao, J. ‘Deformation Machining – A Hybrid Process’, US Patent No. 8,545,142, Oct. 1, 2013.

  5. Roth, J. and Cao, J. “Electrical-assisted Double Side Incremental Forming and Processes Thereof”, US Patent No. 8,741,079 B2, June 3, 2014.

  6. Cao, J., Zhou, R. and Ehmann, K “Desktop deformation-based micro surface texturing system”, US Patent No. 8,905,748 B2, December 9, 2014.

  7. Grzina, D. Rajesh, T., Cao, J., Wang, Q., Xia, Z. C., Ling, T.D., Liu, P. “Cutting Tools with Textured Surfaces,” US Patent No. 9,144,845, September 29, 2015.

  8. Malhotra, R. and Cao, J. “System and Method for Accumulative Double Sided Incremental Forming”, US Patent No. 9,168,580, October 27, 2015. 

  9. Beltran, M., Cao, J. and Roth, J. “System and Method for Incremental Forming”, US Patent No. 9,221,091 B2, Dec. 29, 2015.

  10. Zeng, Q., Ehmann, K.F. and Cao, J. “Tri-pyramid Robot: a novel 3-DOF translational parallel manipulator”, No. 9,283,671 B2, March 15, 2016.

  11. Xia, Z. C., Cao, J., Wang, Q., Rajesh, T., Grzina, D., Ling, T.D., Liu, P. “Forming Tools having Textured Surfaces”, US Patent No. 9,321,090 B2, April 26, 2016.

  12. Pallav, K., Malhotra, R., Saxena, I. Ehmann, K.F. and Cao, J “Laser Induced Plasma Micromachining (LIPMM)”, allowed on July 12, 2016, US Patent Application No. 14/681,365 submitted on April 8, 2015.


  1. Pallav, K., Han, P., Ehmann, K. F., Park, J-K., Ro, S-K., and Cao, J "Surgical Scalpel Blade with Multiple Micro-cutting Edges and Surface Textured Rake Face", provisional patent submitted, Feb. 23, 2011, No. 2011-033.

  2. Pallav, K., Han, P., Ehmann, K. F., Park, J-K., Ro, S-K., and Cao, J "Micro-feature based Surface Textured Biopsy Needles", provisional patent submitted, Feb. 23, 2011, No. 2011-032.

  3. Cao, J., Xu, D.K., Wang, H.P., “Rolling Textures for Adhesion Enhancement”, NU2011-145, October 27, 2011.

  4. Gao, R.X., Fan, Z. and Cao, J. “Methods and Apparatus for Monitoring Microrolling Processes Using Embedded Sensing”, US Patent No. 14/260,680 A1, Sept. 18, 2014.

  5. Yao, Y.W., Wang, X., Ulmer, M. and Cao, J. “Stress manipulated coating for figure reshape of light weight optics mirrors”, NU2015-054, Patent disclosure submitted, March 30, 2015.

  6. Ndip-Agbor, E. E. and Cao, J. “An Automated Toolpath Generation Method for Double Sided Incremental forming of Three Dimensional Freeform Shapes from Sheets”, NU2015-178, Patent disclosure submitted, November 27, 2015, Provisional Patent Application No. 62/291,633, submitted on Feb. 5, 2016.