What is proposed here is to review developments in the area of pneumatic conveying and assess that may be considered as transformative research that has taken place in the past to help advance new research in the field. The
assessment of these advancements is one in which the author takes full responsibility for choosing the transformative topics and wishes to apologize if other developments which the reader may think as transformative are not considered. It is hoped by reviewing the past we can project into the future with an agenda that will permit us to employ transformative research in an effective manner