Inventor
LANGENBERG DANIEL
US19 patents
⚠️ This page may combine multiple inventors who share the name “LANGENBERG DANIEL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SCHLAGE LOCK CO LLC
18 patentsUS10030426B2Jul 24, 2018
Inductive door position sensor
SCHLAGE LOCK CO LLC23 citations93
US11268300B2Mar 8, 2022
Energy harvesting lock system
SCHLAGE LOCK CO LLC7 citations85
US10316568B2Jun 11, 2019
Power boost module for a door closer
SCHLAGE LOCK CO LLC16 citations85
US10844644B2Nov 24, 2020
Power boost module for a door closer
SCHLAGE LOCK CO LLC10 citations84
US11661786B2May 30, 2023
Powered opening module for a door closer
SCHLAGE LOCK CO LLC9 citations83
US11302336B2Apr 12, 2022
Audio-based access control
SCHLAGE LOCK CO LLC5 citations82
US10348221B1Jul 9, 2019
Dynamic energy harvesting and variable harvesting force system
SCHLAGE LOCK CO LLC9 citations82
US11939800B2Mar 26, 2024
Interchangeable functional rose insert
SCHLAGE LOCK CO LLC4 citations73
US11922950B2Mar 5, 2024
Audio-based access control
SCHLAGE LOCK CO LLC2 citations71
US11171503B2Nov 9, 2021
Wireless power status through boosted output voltage
SCHLAGE LOCK CO LLC3 citations71
US10790766B2Sep 29, 2020
Dynamic energy harvesting and variable harvesting force system
SCHLAGE LOCK CO LLC3 citations71
US11062541B2Jul 13, 2021
Automated architectural specification generation and hardware identification
SCHLAGE LOCK CO LLC3 citations65
US12537008B2Jan 27, 2026
Audio-based access control
SCHLAGE LOCK CO LLC0 citations61
US12371925B2Jul 29, 2025
Interchangeable functional rose insert
SCHLAGE LOCK CO LLC0 citations61
US12071803B2Aug 27, 2024
Powered opening module for a door closer
SCHLAGE LOCK CO LLC0 citations60
US11560745B2Jan 24, 2023
Door closer diagnostics system
SCHLAGE LOCK CO LLC0 citations58
US10947764B2Mar 16, 2021
Door closer diagnostics system
SCHLAGE LOCK CO LLC0 citations58
US12293619B2May 6, 2025
Automated architectural specification generation and hardware identification
SCHLAGE LOCK CO LLC0 citations55