In this short statistical report, we compile and analyze statistics on past and current scientific
and technological research on photosensitive glass (PG) as well as glass-ceramics (GC). Their
developments have traced remarkable histories since their first commercial discoveries in the 1940s
and 1950s, both the work of Don Stookey. These products and processes have transformed modern life and are two of the
most widely reported methods for special glass manufacturing. They provide security, are of high quality mass production.
The U.S., Japan and China have been leaders in PG glass development, the second place going to China in terms of
GC research communities. We have observed very significant progress in recent decades with an exponential growth in
the number of scientific publications and patents for PGs and GCs due to new publications, author keywords, affiliations
and primary characterization techniques. More than 6,497 patents were filed globally prior to 2015 with the terms “photosensitive
and glass” and 9,738 with the terms “glass and ceramics” within the title or abstract according to the European
Patent Office. These numbers have continued to grow along with worldwide PG and GC-related sales. Based on the Scopus
database, for the same period 1,405 PG documents and 30,819 GC-related (primarily manuscripts) were published
with the same terms in the title, abstract or keywords list. From this statistical analysis, both PG and GC will continue to
be fascinating materials for further research, development and uses in the near future.