H01J 9/445

Aging of tubes or lamps

Official title: {Aging of tubes or lamps, e.g. by "spot knocking" (cathode activation H01J9/045)}

H01J9/445 (Aging of tubes or lamps) appears on 65 US grants and 23 published applications in this corpus.

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Granted patents
65
Published applications
23
Assignees
36
Inventors
121
Latest grant
24 Mar 2020

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H01J 9/445: granted patents and published applications per publication year
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197610
197710
197830
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198020
198100
198230
198350
198430
198530
198600
198730
198800
198940
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199100
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199500
199600
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199810
199910
200020
200120
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200322
200434
200543
200603
200742
200813
200910
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201310
201400
201511
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201800
201901
202010

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