- Cohn, D.; Yitzchaik, S.; Bilenkis, S., "Preparation of polyurethane-amide segmented copolymers (PEUA'm) and their use in biomedical articles and pharmaceutical compositions" Israel Patent No. 090193 (1989). European Patent No. 396,429.A2 (1993). U.S. Patent No. 5,100,992.A (1993). 
- Berkovic, G.; Krongauz, V.; Yitzchaik, S., "Method and System for Producing Second Order Nonlinear Optical Effects" Israel Patent No. 09161, (1990); U.S. Patent No. 5,262,890 (1993). 
- Krongauz, V.; Buchholtz, F.; Zelichenok, A.; Yitzchaik, S. (1995) Photochromic spirooxazine monomers and polysiloxanes. Israel Patent Application (1991); US Patent No. 5,473,068 (1995) 
- Yitzchaik, S.; Lundquist, P.M.; Marks, T.J. (1997) “Self-assembled superlattices and waveguides prepared to use therewith.” US Patent Appl. No. 08/857,769 (May 1997) 
- Yitzchaik, S. and Burtman, V. "Molecular Layer Epitaxy Method and Compositions." US Patent No. 6,316,098 (2001). 
- Yitzchaik, S., "Molecular Layer Epitaxy Method and Compositions" US Patent No. 6,808,803 B1 (Oct. 26, 2004). 
- Yitzchaik, S., Shappir, J. and Spira, M. "A Hybrid Device with Biological components” US Patent No. 6,703,660 (2004); US 2002-005 0611-A1, May 1, 2002; PCT/IL00/00112 (August 2001). 
- Yitzchaik, S., Vaganova, E. and Khodorkovsky, V., "Photo-responsive Polymer Systems and their Use”, PCT/IL02/00737 (2002); WO 03/021695 A1 (2003) UK Patent GB2395197-2377-03 (2004). 
- Yitzchaik, S., Spira, M. and Shappir, “Biosensor for molecules” (2002) PCT/IL03/00941. 
- Shappir, J., Yitzchaik, S. and Spira, M., “Packaging of Electronic Devices with a Small Exposed Area to the Environment” – US Patent Appl. # 60/438,001 (2003). 
- Spira, M., Shappir, J. and Yitzchaik, S., “Electronic device for communication with living cells” – PCT/IL2004/000502 (2004); U.S. Patent Number: US 07795039 - September 14, 2010. 
- Spira, M., Yitzchaik, S., Shappir, J., Bartic, C., and Borghs, G., "Micro-nails for use in electrical interaction with cells" Application Serial No. PCT/IL2008/000313 (March 09, 2008). 
- Shappir, J., Spira, M., Yitzchaik, S., Bartic, C. and Borghs, G., "Planer silicon microfluidics integrated with microelectronics and MEMS" US Patent Appl. # 3345-00 (2009). 
- Hanein, Y., Yitzchaik, S., Sernagor, E., Banin, U., Cheshnovsky, O., "Photoelectrical devices for stimulating neurons” US Patent Number: US 08774936 (July 8, 2014).- Yitzchaik, S. and Vaganova, E., PCT Application No. PCT/IL2012/050212 "Polymeric compositions and uses there of" (July 26, 2012).
- Yitzchaik, S. and Vaganova, E., Provisional Patent Application "Polymeric compositions for IR detector and proximity touch screens" (January 31, 2013).
 
- Yitzchaik, S., Gilon C., Hurevich, M., Marx, G., United States Provisional Patent Application No. 62/549,452 "Sensor and uses thereof in detecting metal ions" (August 24, 2017)

