CONTENTS 
Author's Preface by Stephen van Dulken vii 
Acknowledgements ix
Introduction by Andrew Phillips 1
PATENTS 
1900-1909 16
1910-1919 38
1920-1929 60
1930-1939 82
1940-1949 104
1950-1959 126
1960-1969 148
1970-1979 170
1980-1989 192
1990-1999 214
Further Reading 239 
Index 243