[60] J. Hradil, and M. Raab, Method for Preparation of Polymer Spheres with Enhanced Absortion of Nonpolar or Medium Polar Organic Compounds, Čs. Patent Appl. PV 2000-482.
[59] J. Hradil, Method for Preparation of Permanently Porous and Functionalized Copolymers of Styrene, Čs. Patent Appl. PV 130-94
[58] V.I. Orlov, A.A. Aratskova, J. Hradil, J. et al., Method for Chromatographic Separation of Transition Metals, USSR Patent 1803859, 1991.
[57] J. Hradil, J. Brych, R. Súlovská, et al., Method for Preparation of Carbonized Adsorbents by Carbonization of Polymers, Čs. Patent 283987, 1991.
[56] A.A. Aratskova, L.D. Belyakova, V.I. Orlov, et al., Method for Chromatographic Separation of Cations, USSR Patent 1649424, 1991.
[55] M. Jelínková, J. Hradil, and F. Švec, Method for Preparation of Porous Plate-like Polymer Formations, SK Patent 279654, 1990.
[54] M. Jelínková, J. Hradil, and F. Švec, Method for Preparation of Porous Plate-like Polymer Formations, Čs. Patent 286388, 1990.
[53] L.A. Nachapetyan, L.I. Motina, V.P. Kuznecov, et al., Method for Immunosorbent Preparation, Čs. Patent 247995, 1989.
[52] F. Švec, J. Hradil, V.V. Azanova, et al., A Procedure for Preparation of Strongly Acid Derivatives of Hydrophilic Polymers, Čs. Patent Appl. PV 4095-88.
[51] J. Včelák, J. Hradil, and V. Chvalovský, Method for Production of Polyhalogen Compounds by Addition Reaction Catalysed by Immobilized Catalysts, Čs. Patent 267459, 1987.
[50] M. Smrž, and J. Hradil, Method for Preparation of Polymer with Cation or Anion Active or Complexation Groupings, Čs. Patent 190171, 1987.
[49] A.A. Aratskova, L.D. Beljakova, Y.I. Yaschin, J. Hradil et al., Sorbent for Liquid Chromatography, USSR Patent 1368773, 1987.
[48] L.I. Motina, J. Hradil, L.A. Nachapetyan, et al., Imunosorbents for Isolation and Preparation of d-Amylase, Čs. Patent 256821, 1986.
[47] J. Hradil, F. Švec, and F. David, Method for Starch Hydrolysis, Čs. Patent 270903, 1986.
[46] J. Hradil, F. Švec, and F. David, Method for Cleaning of Olisaccharide, Glucose and Starch Solutions, Čs. Patent 253821, 1986.
[45] A.A. Aratskova, L.D. Belyakova, A.V. Kiselev, J. Hradil et al., Method for Chromatographic Separation of Ions, USSR Patent 1237231, 1986.
[44] J. Hradil, and F. Švec, Method for Preparation of Sorbent with Carboxylic Groups, Čs. Patent 241727, 1984.
[43] J. Hradil, Method for Preparation of Polymer with Reactive Anhydride Groups, Čs. Patent 239500, 1984.
[42] J. Hradil, F. Švec, and D. Mrázová, Immobilized Amyloglukosidase and Method of its Preparation, Čs. Patent 238544, 1984.
[41] S. Piščák, I. Bašňák, R. Koselko, J. Hradil et al., Method for Immobilization of Microbial Cells by Anion Active Support, Čs. Patent Appl. PV 156-83.
[40] J. Reiss, J. Hetflejš, J. Hradil, et al., Immobilized Hydrogenation Catalysts and Method for their Production, Čs. Patent 242004, 1982.
[39] J. Hradil, and F. Švec, Polymer Sorbent with Ion Exchange Functional Groupings, Čs. Patent 217361, 1980.
[38] J. Hradil, F. Švec, V. Rada, et al., Method for Invertase Separation, Čs. Patent 211153, 1980.
[37] Z. Matějka, J. Hradil, J. Štamberg, et al., Method for Scavenging of Organic Compounds from Water by Bead Cellulose Anion Exchanger, Čs. Patent Appl. PV 4068-79.
[36] J. Kučera, J. Hradil, V. Rada, et al., Method for Glucoso Oxidase Separation, Čs. Patent 206992, 1979.
[35] J. Hradil, F. Švec, and M. Bureš, Method for Continual Saccharose Inversion, Čs. Patent 204643, 1979.
[34] J. Hradil, V. Musil, and V. Horák, Method for Bead Cellulose Ion Exchange Derivatives Preparation, Čs. Patent 211625, 1979.
[33] J. Hradil, V. Horák, and V. Musil, Method for Production of Polymers or Biopolymers Based on Porous Ion Exchangers or Adsorbents with Functional Groups, Čs. Patent 208638, 1979.
[32] J. Bor, L. Mikoláš, J. Hradil, and J. Štamberg, Method for Preparation of Radioactive Compounds Generated by Natural Decay of Uranium to Neptunium and Plutonium Removal from Water by Adsorbents Based on Bead Cellulose and their Derivatives, Čs. Patent Appl. PV 135-79.
[31] L.D. Belyakova, A.V. Kiselev, N.P. Platonova, and J. Hradil, Adsorbent for Sulphur Dioxide Removal from Gas Mixture, USSR Patent 674272, 1979.
[30] P. Štrop, J. Čoupek, O. Mikeš, J. Hradil, Method for Preparation of Anion Exchangers by Substitution of Hydrophilic Polymeric Gels, USA Patent 4101461, 1978.
[29] J. Hradil, V. Musil, and J. Mlejnek, Method of Preparation of Crosslinked Bead Cellulose with Ion Exchange Groups, Čs.Patent 199420, 1978.
[28] J. Hradil, and F. Švec, Methacrylate Copolymers with Complexing Groups and Method of Their Preparation, Čs. Patent 195197, 1978.
[27] J. Hradil, J. Janča, J. Kálal, and F. Švec, Method of Separation or Preparation of Oligomers and Polymers, Čs. Patent 229251, 1978.
[26] J. Hradil, V. Musil, and J. Mlejnek, Method of Preparation of Bead Cellulose Ion Exchangers, Čs. Patent 195205, 1978.
[25] L.D. Belyakova, A.V. Kiselev, N.P. Platonova, J. Hradil, and J. Štamberg, Method of Sulfur Dioxide Removal from the Gas Mixture, Čs. Patent 214201, 1978.
[24] J. Hradil, J. Štamberg, V.G. Berezkin, et al., Preparation of Selective Aliphatic Unsaturated Hydrocarbons, Čs. Patent 189328, 1977.
[23] J. Hradil, and M. Smrž, Polymer Complexation Ion Exchangers and Method of their Preparation, Čs. Patent 193344, 1977.
[22] J. Hradil, and V. Musil, Method of Preparation of Crosslinked Bead Cellulose, Čs. Patent 193202, 1977.
[21] J. Hradil, and R. Jílek, Method for Entrapment and Separation of Heavy Metals, Čs. Patent 188698, 1977.
[20] J. Hradil, J. Štamberg, V.G. Berezkin, et al., Sorbent for Sorption of Olefinic Hydrocarbons, USSR Patent 664666, 1977.
[19] J. Hradil, J. Štamberg, R. Jílek, et al., Sorbents of Heavy Metals Based on Bead Cellulose and their Derivatives, Čs. Patent 188698, 1977.
[18] M. Smrž, and J. Hradil, Method of Production of Chlorinated or Brominated Polymer Compounds, Čs. Patent 183508, 1976.
[17] R. Jílek, Z. Slovák, M. Smrž, et al., Method of Chemical Modification of Mushroom Mycelii Based Sorbent, Čs. Patent 198198, 1976.
[16] J. Málek, J. Hradil, I. Pavelka, et al., Method of Production of Linear Aromatic Copolyesters Production, Čs. Patent 164978, 1975.
[15] J. Hradil, and J. Čoupek, Method for Preparation of Cation Active Ion Exchangers, Čs. Patent 182467, 1975.
[14] J. Hradil, and M. Smrž, Alkylation Reagent, Čs. Patent 175255, 1975.
[13] J. Hradil, and J. Čoupek, Method for Preparation of Cation Active Ion Exchangers by Substitution of Hydrophilic Polymers, Čs. Patent 187095, 1975.
[12] J. Hradil, and J. Čoupek, Method for Preparation of Amphoteric Ion Exchangers, Čs. Patent 185545, 1975.
[11] J. Hradil, J. Štamberg, and J. Čoupek, Preparation of Cation, and Anion Active, and Amphoteric Polymers by Transformation of Poly(2-Hydroxyalkyl Methakrylate), Čs. Patent 182467, 1975, Belgium Patent 842597, 1976; USA Patent 4067825, 1978; GB Patent 1539173, 1978.
[10] J. Čoupek, J. Lukáš, J. Hradil, et al., Macroporous Polymer Adsorbents for Chromatography, Especially Gas Chromatography, Čs. Patent 175156, 1975.
[9] P. Štrop, J. Čoupek, O. Mikeš, and J. Hradil, Method for Preparation of Homogeneous or Macroporous Anion Active Ion Exchangers, Čs. Patent 189539, 1974.
[8] P. Štrop, J. Čoupek, O. Mikeš, and J. Hradil, Method for Preparation of Homogeneous or Macroporous Anion Active Ion Exchangers, Čs. Patent 187563, 1974.
[7] J. Hradil, J. Čoupek, and M. Křiváková, Method for Preparation of Insolubilized Biologically Active Compounds, Čs. Patent 167593, 1973.
[6] I. Gavrilová, J. Hradil, S. Ševčík, et al., Heterogeneous Cation Active Membranes with Hydrophilic Binder, Čs. Patent Appl. PV 4980-73.
[5] J. Hradil, J. Čoupek, M. Křiváková, et al., Method for Preparation of Hydroxyalkyl Methacrylate or Acrylate Gel Sorbents for Gas and Liquid Chromatogtraphy, Čs. Patent 159990, 1972.
[4] J. Hradil, J. Málek, and V. Bažant, Verfahren zur Veresterung von 3,5-Dikarboxybenzolsulfonaten alkalischer Metalle zu deren bis(2-Hydroxyaethyl)-Estern, DE Patent 1952735, 1969.
[3] J. Hradil, J. Málek, and V. Bažant, Method of Production of bis-(2-Hydroxyethyl)Ester of Sodium and Kalium 3,5-Dicarboxybenzensulfonate Production, Čs. Patent 146593, 1968.
[2] J. Hradil, J. Málek, P. Čefelín, et al., Method of Production of Glycol Ester of Terephthalic and Isophthalic Acid Production in Mixture with their Oligomers, Čs. Patent 148756, 1968.
[1] J. Hradil, J. Málek, I. Pavelka, et al., Method of Preparation of Modified Copolymers, Čs. Patent Appl. PV 6091-67.
