Inventor
HENN ANDREAS
DE27 patents
⚠️ This page may combine multiple inventors who share the name “HENN ANDREAS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HEIDELBERGER DRUCKMASCH AG
24 patentsUS5947469ASep 7, 1999
Device for laterally aligning sheets in a feeder of a sheet-fed rotary printing press
HEIDELBERGER DRUCKMASCH AG21 citations89
US7011305B2Mar 14, 2006
Device and method for aligning sheets
HEIDELBERGER DRUCKMASCH AG13 citations83
US6505831B2Jan 14, 2003
Method for the proper alignment of sheets
HEIDELBERGER DRUCKMASCH AG15 citations83
US6715751B2Apr 6, 2004
Device for adjusting the position of sheet material when a direction of motion thereof is reversed
HEIDELBERGER DRUCKMASCH AG10 citations73
US5944431AAug 31, 1999
Sheet sensor device with light curtain
HEIDELBERGER DRUCKMASCH AG13 citations73
US6144038ANov 7, 2000
Method and device for detecting the position of stacked material
HEIDELBERGER DRUCKMASCH AG10 citations72
US10596806B2Mar 24, 2020
Method for detecting and compensating for defective printing nozzles in an ink jet printing machine
HEIDELBERGER DRUCKMASCH AG3 citations70
US10603923B2Mar 31, 2020
Method for detecting defective printing nozzles in an inkjet printing machine
HEIDELBERGER DRUCKMASCH AG4 citations68
US10131137B2Nov 20, 2018
Sheet-fed printing press with a sensor system and methods for calibrating and for aligning the sensor system
HEIDELBERGER DRUCKMASCH AG2 citations68
US6883426B2Apr 26, 2005
Printing machine and method for printing a sheet
HEIDELBERGER DRUCKMASCH AG4 citations62
US6604739B2Aug 12, 2003
Method and device for aligning flat copies in sheet-processing machines
HEIDELBERGER DRUCKMASCH AG3 citations62
US6047961AApr 11, 2000
Sheet sensor for use with a drum
HEIDELBERGER DRUCKMASCH AG4 citations62
US7261292B2Aug 28, 2007
Method of feeding sheets to a sheet-processing machine, sheet-smoothing method and device
HEIDELBERGER DRUCKMASCH AG2 citations61
US11247496B2Feb 15, 2022
Device for controlling an inkjet printing machine to provide a variable distance between an inkjet print head and a substrate
HEIDELBERGER DRUCKMASCH AG0 citations60
US10603900B2Mar 31, 2020
Method for detecting a defective print nozzle using a variable print nozzle test pattern
HEIDELBERGER DRUCKMASCH AG1 citations60
US10549545B2Feb 4, 2020
Method for detecting and compensating for defective printing nozzles in an inkjet printing machine using a threshold calculation based on weighting factors
HEIDELBERGER DRUCKMASCH AG1 citations60
US7966931B2Jun 28, 2011
Sheet-fed offset printing press and method of two-sided multi-color printing
HEIDELBERGER DRUCKMASCH AG2 citations60
US10625499B2Apr 21, 2020
Method for detecting and compensating for defective print heads in an inkjet printing machine by stochastic print head monitoring
HEIDELBERGER DRUCKMASCH AG1 citations59
US10328725B2Jun 25, 2019
Device for detecting a position of a printing material transported in a printing machine
HEIDELBERGER DRUCKMASCH AG1 citations58
US6679173B2Jan 20, 2004
Method of tempering or controlling the temperature of a printing press
HEIDELBERGER DRUCKMASCH AG0 citations51
US6505826B2Jan 14, 2003
Device for separating sheets piled up so as to form a stack, in a feeder of a sheet-processing machine
HEIDELBERGER DRUCKMASCH AG0 citations51
US5590970AJan 7, 1997
Contact-free double-sheet control device for a printer
HEIDELBERGER DRUCKMASCH AG0 citations51
US11325391B2May 10, 2022
Method for operating a printing material processing machine by applying a varnish consumption prediction
HEIDELBERGER DRUCKMASCH AG0 citations50
US9573359B2Feb 21, 2017
Method and device for producing and transferring diffractive microstructures to a printing material and printing press having the device
HEIDELBERGER DRUCKMASCH AG1 citations46