Gallery of Patents
Absurd Patents
Agricultural
Business
Building & Construction
Communication
Clothing
Entertainment
Electronics
Food and Beverage
Household
Internet
Light and Optics
Manufacturing
Medicine
Motors
Nuclear
Transportation
Weapons
Electronics
Name Number Author Published
alternating current 533244 Steinmetz, Charles 1895
two element vacuum tube 803684 Fleming, John 1905
triode vacuum tube  841387 De Forest, Lee 1907
vacuum tube 879532 DeForest, Lee 1908
cash register 924616 Kettering, Charles F. 1909
phototube 1133435 Fessenden, Reg. 1915
television 1544156 Jenkins, Charles F 1925
high vacuum radio tube 1558436 Langmuir, Irving 1925
television 1773980 Farnsworth, Philo T. 1930
negative feedback amplifier 2102671 Black, Harold S, 1932
radio direction finder 2142133 Kruesi, Geoffrey G. 1933
car radio 1944139 Lear, William P. 1934
cathode ray tube 2010712 Coolidge, William 1935
television 2021907 Zworykin, Vladimir K. 1935
cathode ray tube, television 2139296 Zworykin, Valdimir 1938
variable freq oscillator generator 2268872 Hewlett, William 1939
frequency hopping 2292387 Lamarr, Hedy 1942
electron microscope 2455676 Hillier, James 1946
pulse code modulation 2801281 Oliver, Bernard 1948
transistor 252404 Bardeen, John 1950
transistor 2502488 Bardeen, John 1950
junction transistor 2569347 Shockley, William 1951
radio frequency mass spectrometer 272127 Bennett, Willard H. 1954
digital computer 2668661 Stibitz, George R. 1954
directional antenna 2682050 Alford, Andrew 1954
scanning radar 2711534 Rines, Robert 1955
semiconductortelevision circuit 2745038 Sziklai, George 1956
radioactive battery 2913510 Birden, John H. 1959
integrated circuit 2981877 Noyce, Robert 1961
DRAM (dynamic random access memory) 3387286 Dennard, Robert 1967
electric field-responsive solid state devices 3365583 Gunn, J.B. 1968
self-aligned gate MOSFET 3472712 Bower, Robert 1969
semi-conductor memory 3651492 Lockwood, George C. 1972
liquid crystal display 3731986 Fergason, James 1973
charge coupled device for imaging (CCD) 3858232 Boyle, Willard S. 1974
computed axial tomography (CAT scan) 3922552 Ledley, Robert S. 1975
scanning tunneling microscope 4343993 Rohrer, Heinrich 1982
 

Fish & Associates, PC

2603 Main Street, Suite 1000 · Irvine, CA 92614-4271
Phone: (949) 943-8300 · Fax: (949) 943-8358
Email: This e-mail address is being protected from spam bots, you need JavaScript enabled to view it

Search | Disclaimers | Gallery of Patents | Strategic Patenting | Site Map