Improvement in Fire-Escapes (Parachute and impact-absorbing overshoes)
Benjamin B. Oppenheimer  
No. 221,855
Patented: Nov 18, 1879

Flying Machine
O. & W. Wright
No. 821,393 
Patented:  May 22, 1906

Separable Fastener (Zipper)
Gideon Sundback
No. 1,219,881
Patented: March 20,1917

Canine Scuba Diving Apparatus
Dwane L. Folsom
No. 6,206,000
Patented: March 27, 2001

Apparatus for Exhibiting Photographs of Moving Objects
T.A. Edison
No. 493,426
Patented: March 14, 1893

Dust Cover for Dog
Seroun Kesh
No. 3,150,641
Patented: September 29, 1964 

Aircraft Propulsion System and Power Unit (Jet engine)
F. Whittle
No. 2,404,334
Patented: July 16, 1946

Neutronic Reactor
Enrico Fermi and Leo Szilard
No. 2,708,656
Patented: May 17, 1955

Camera
I.G. Eastman
No. 388,850
Patented: September 4, 1888