1901-1950

patent on patents, 1901 (status unclear)
command towers, various sizes, 1905, renewed 1917, 1934, 1947, 1960, 1977, 1990
audible phonograph traffic signal, 1911
door-arresting device, 1915
nevr-droop spray-on elastic, 1917
rubberized grip for various products, 1917, 1918 (Canada)
automatic discipline system for unwanted children, 1921
insta-heel canine obedience trainer, 1921 (same patent as previous)
houseplant jack, 1925
external combustion engine, 1925
variable pressure clothespin with release timer, rubberized grip, 1925
mechanical flagpole apparatus, 1932
listening machine for unruly pupils, 1934
home food powderer, 1934
livestock caffeination device, 1936
self-caffeination device, 1936
tube-u-lon flammable fabric, 1941
cordless telegraph, 1948
carpet baffle, 1949
dental floss rewaxer, 1950
long-range signalling device for boaters and fortifications, 1952

1950 – 1998

hamstitute, 1951
portable diesel-powered air purifier for backpackers, 1968
“floor-nado” ride-on vacuum cleaner, various attachments, fuel adaptors, 1974
shower caddy caddy, 1974
carpet shagger, 1975, 1966 (UK, not renewed)
sock dip, 1975
toothbrush whitener, 1975
automatic batting machine, with warning light, 1999