Inventor
SEWALL NELSON D
US12 patents
⚠️ This page may combine multiple inventors who share the name “SEWALL NELSON D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
3M INNOVATIVE PROPERTIES CO
10 patentsUS6076248AJun 20, 2000
Method of making a master tool
3M INNOVATIVE PROPERTIES CO145 citations98
US7140812B2Nov 28, 2006
Diamond tool with a multi-tipped diamond
3M INNOVATIVE PROPERTIES CO117 citations96
US7174619B2Feb 13, 2007
Methods of making microstructured lamina and apparatus
3M INNOVATIVE PROPERTIES CO41 citations95
US7510462B2Mar 31, 2009
Multi-diamond cutting tool assembly for creating microreplication tools
3M INNOVATIVE PROPERTIES CO21 citations92
US6935756B2Aug 30, 2005
Retroreflective articles having moire-like pattern
3M INNOVATIVE PROPERTIES CO40 citations91
US6843571B2Jan 18, 2005
Methods of making a master and replicas thereof
3M INNOVATIVE PROPERTIES CO27 citations91
US9703023B2Jul 11, 2017
Microtiled prismatic cube corner articles
3M INNOVATIVE PROPERTIES CO9 citations84
US10502875B2Dec 10, 2019
Microtiled prismatic cube corner articles
3M INNOVATIVE PROPERTIES CO3 citations73
US7401396B2Jul 22, 2008
Methods of making microstructured lamina and apparatus
3M INNOVATIVE PROPERTIES CO3 citations62
US11253933B2Feb 22, 2022
Non-orthogonal cube corner elements and arrays thereof made by end milling
3M INNOVATIVE PROPERTIES CO0 citations58