76 US Patents of Prof. Dr. Hans E. Hollmann
1930-1938
Dates filed in Germany |
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- Utra Short wave
system. 1,921,187; Oct. 13, 1930
- Method
and apparatus for the generation of electric oscillations. 1,962,195; May
2, 1929
- High Frequency oscillator. 1,962,196; Aug 13, 1929
- Ultrashort wave system. 1,978,021; Oct 13, 1930
- Operating electric discharge device. 1,994,219;
1930
- Ultra-short
wave radio system. 2,092,069; June 8, 1935
- Modulation
and frequency stabilization. 2,078,245; June 19, 1933
- Modulation
- controlled
magnetron oscillator. 2,080,571; Aug 31, 1934
- Modulation
system for ultra-high frequency waves. 2,080,572; Aug 21, 1933
- Utra Short wave system. 1,921,187; Oct 13, 1930
- Method
and apparatus for the generation of electric oscillations. 1,962,195; May
2, 1929
- Ultrashort wave system. 1,978,021; Oct 13, 1930
- Tuning device. 2,081,746; 1930
High Frequency oscillator. 1,962,196; Aug 13, 1929
- Ultra-short
wave radio system. 2,092,069; June 8, 1935
- Modulation
and frequency stabilization. 2,078,245; June 19, 1933
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- Modulation
- controlled
magnetron oscillator. 2,080,571; Aug 21, 1934
- Modulation
system for ultra-high frequency waves. 2,080,572; Aug 21, 1934
- Tuning
receivers operating on potential resonance. 2,085,022; Aug 23, 1934
- Amplifying
circuit arrangement. 2,088,061; Nov 24, 1934
- Electron
tube and circuit therefore. 2,088,653; March 8, 1933
- Grid
detection circuit for wave lengths below one decimeter. 2,089,260; March
6, 1935
- Automatic
volume control circuit. 2,093,560;
Sept. 21, 1935*
-
Automatic detector gain control circuit. 2,093,561; Sept. 21, 1935*
- Tuning device.
2,081,746; May 25, 1935*
- Ultra-short
wave receiver. 2,030,872; July 11, 1933
- Receiver
for ultra short waves. 2,033,937; August 17, 1933
- Electron
discharge device circuit. 2,044,003; March 8, 1933
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- Braun tube. 2,046,513; May 30, 1932
- Large
power ultra short wave generator. 2,047,204; June 30, 1933
- Large power ultra short wave generator. 2,047,205;
June 30, 1932
- Magnetically
controlled electron discharge device. 2,054,126; July 5, 1934
- Receiving
circuit. 2,059,581; April 6, 1933
- Electronic
oscillator. 2,054,816; July 10, 1929
-
Recording device. 2,133,140; Oct.
11, 1938*
- Modulation
system. 2,104,541; Jan. 31, 1934
- Ultrashort
wave circuit. 2,111,396; March 8, 1933
- Fading
elimination. 2,111,778; Aug 25, 1933
-
Ultrashort wave resonance system. 2,115,070; Sept 15, 1934
-
Ultrashort wave receiver. 2,123,242;
July 12, 1938
- Modulation
circuit for retarding field generators. 2,123,727; Nov 3, 1933
- Magnetron.
2,123,728; Nov 29, 1935
- Magnetron.
2,130,132; July 16, 1936
- Secondary
emission tube and circuit. 2,138,920; April 23, 1936
- Electron
discharge device. 2,144,222; Jan. 17, 1939
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- Radio
apparatus for determining distance and direction. 2,151,323; Mar. 21, 1939
- Device
for generating electrical oscillations. 2,151,765; May 18, 1935
- Magnetron.
2,151,766; Aug 24, 1937
- Oscillator.
2,153,190; April 8, 1936
- Electromechanical
oscillating device. 2,154,127; July 7, 1936
- Crystal
mounting with temperature compensation. 2,157,665; Oct 17, 1935
- Cross
field control tube. 2,164,922; Dec 3, 1935
- Receiver
for ultra-short waves. 2,169,358; June 18, 1937
- Electron
discharge device. 2,171,212; April 20, 1936
- Detector.
2,175,263; April 22, 1936
- Electron
beam tube. 2,176,589; Jan 16, 1936
- Modulation
arrangement for magnetron transmitter. 2,177,065; Dec 9, 1935
- Electronic
device. 2,180,957; April 6, 1936
- Electronic
system. 2,180,958; April 14, 1936
- Cathode ray
device. 2,182,382; Oct 29, 1936
- Cathode ray
device. 2,189,583; May 23, 1936
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- Transmitter.
2,189,584; July 22,1936
- Space discharge
device. 2,190,069; June 23, 1936
- Electronic
system. 2,195,455; March 4, 1936
- Electron
device. 2,195,456; April 27, 1937
- Magnetron.
2,199,177; Jan 26, 1938
- Magnetron.
2,201,666; May 9, 1936
- Confined
or space resonance antenna. 2,202,380; Aug 27, 1936
- Ultra-high
frequency receiver. 2,205,475; May 12, 1936
- Short-wave
resonant circuit. 2,205,852; July 3, 1937
- Electronic device. 2,206,668; May 26, 1936
- Low
damped oscillation circuit for ultra short waves. 2,216,011; Sept 17, 1937
- Oscillatory circuit. 2,216,176; July 3, 1937
- Directional
antenna system. 2,227,088; May 11, 1936
- Selective space discharge device. 2,229,700; 1936
- Magnetron
discharge tube and operating the same. 2,233,261; July 16, 1936
- Ultra
short wave oscillation generator. 2,242,888; Feb 16, 1938
- Oscillation
generator. 2,245,669; Dec 20, 1937
- Concentration
- controlled
secondary emission tube. 2,266,639; Jan 28, 1938
- Oscillation
generator. 2,245,670; Feb 16, 1938
- Selective space
discharge device. 2,229,700; 1938
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