Dr. David Mencher


Practice areas


Patent Attorney

Ph.D. Biochemistry and Molecular Biology

Specific Expertise

Aquaculture, Diagnostics, Genetic Engineering, NanoBiology.

Experience & Background

Since joining Ehrlich & Partners (later to become Ehrlich & Fenster) in 2000, Dr. Mencher has drafted and successfully prosecuted hundreds of patent applications in all aspects of the field of Life Sciences: Biotech, Immunology, Biochemistry, Medical Sciences, Agrotechnology, Plant Breeding and more. Dr. Mencher has also advised and accompanied IP strategizing for client organizations throughout their development from invention to product and beyond.


2000 – Patent Attorney with Ehrlich & Partners (later Ehrlich & Fenster), Life Sciences.

2009– Present – Guest Lecturer and Mentor (IP) Faculty of Biotechnology & Food Engineering- Masters and PhD students , Technion, Haifa.

1995 – 2005 – Instructor, Honors Biology and Chemistry, EIE Overseas Program, Jerusalem.

1990 – 1995 – Instructor, Chemistry, Portland Community College, Portland OR, USA.

1989 – 1990 – Director of Research, Laboratory of Prof. M. Sela, Hadassa-HUJI School of Oral Biology, Jerusalem.

1982 – 1989 – Director of Research, Laboratory of Prof. M. Wallach, Kuvin Center, Hadassa-HUJI Medical School, Jerusalem.

1975 – 1982 – Research and Teaching Assistant, Dept. of Biochemistry, Hadassa-HUJI Medical School, Jerusalem.



1990 – 1994 – Doctor of Chiropractic, University of Western States, Portland, OR.

1975 – 1982 – Ph.D. and M.Sc.- Biochemistry/Molecular Biology, Dept. of Biochemistry, Hadassa-HUJI Medical School, Jerusalem.

1971 – 1973 – B.Sc.- Biology, Faculty of Life Sciences, HUJI, Jerusalem.

1964 – 1968 – B.A, Biology and Sociology, Hunter (Lehman) College, N.Y.



Dr. Mencher is a registered Patent Attorney in Israel since 2005.