Inventor
DUNCAN DAVID
CA40 patents
⚠️ This page may combine multiple inventors who share the name “DUNCAN DAVID”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OP HYGIENE IP GMBH
10 patentsUS10242301B2Mar 26, 2019
Superimposed QR code for dispenser and replaceable reservoir
OP HYGIENE IP GMBH18 citations93
US9357886B2Jun 7, 2016
Dispenser shroud
OP HYGIENE IP GMBH11 citations84
US10671902B2Jun 2, 2020
Method providing superimposed QR code for dispenser and replaceable reservoir
OP HYGIENE IP GMBH6 citations83
US10178928B2Jan 15, 2019
Interactive display device
OP HYGIENE IP GMBH11 citations83
US11720775B2Aug 8, 2023
Method providing superimposed machine readable tags for dispenser and replaceable reservoir
OP HYGIENE IP GMBH2 citations72
US10993587B2May 4, 2021
Interactive display device
OP HYGIENE IP GMBH3 citations72
US12137851B2Nov 12, 2024
Interactive display device
OP HYGIENE IP GMBH0 citations62
US11980327B2May 14, 2024
Interactive display device
OP HYGIENE IP GMBH0 citations62
US11347984B2May 31, 2022
Method providing superimposed machine readable tags for dispenser and replaceable reservoir
OP HYGIENE IP GMBH0 citations62
US10244901B2Apr 2, 2019
Levitation fluid dispenser
OP HYGIENE IP GMBH1 citations59
(unassigned)
5 patentsUS6118375ASep 12, 2000
Portable intruder detection system for campsites
77 citations96
US6671931B1Jan 6, 2004
Vibrating hammer glove
37 citations92
US6189472B1Feb 20, 2001
Craft with tilting sail
12 citations74
US5937470AAug 17, 1999
Metal fitting cleaner
5 citations63
US6216308B1Apr 17, 2001
Full coverage windshield wiper
1 citations52
GLOBAL NETWORK SECURITY INC
3 patentsUS7136711B1Nov 14, 2006
Facilities management system
GLOBAL NETWORK SECURITY INC207 citations97
US7356372B1Apr 8, 2008
Facilities management system with programmable logic control
GLOBAL NETWORK SECURITY INC207 citations95
US7340314B1Mar 4, 2008
Facilities management system with local display and user interface
GLOBAL NETWORK SECURITY INC202 citations95