H04N 1/00355

Mark-sheet input

Official title: {Mark-sheet input (sensing record carriers G06K7/00; character recognition G06V30/10; document-oriented image-based pattern recognition G06V30/40)}

H04N1/00355 (Mark-sheet input) appears on 840 US grants and 832 published applications in this corpus.

Search patents in H04N
Granted patents
840
Published applications
832
Assignees
128
Inventors
765
Latest grant
16 Jun 2026

Filings by year

H04N 1/00355: granted patents and published applications per publication year
YearGranted patentsPublished applications
197610
197700
197820
197900
198020
198100
198210
198300
198410
198500
198620
198720
198800
198910
199020
199110
1992110
199340
199450
199590
199660
199770
199840
199970
200050
200140
20021114
20031156
20043641
200532117
20066359
20074864
20085877
20095082
20107455
201110250
20124723
20133040
20142821
20153111
20162214
20171714
20181918
20191014
20201813
202185
20221110
20231214
20241310
202593
202637

By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.

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