Nelson D. Sewall — 12 Patents at 3M

Nelson D. Sewall has been granted 12 US patents while listed as an inventor at 3M. The first was granted in 2000 and the most recent in November 2023. Nelson D. Sewall ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list Nelson D. Sewall in Forest Lake, MN, US.

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
11806795	Security articles comprising groups of microstructures made by end milling	Christopher Grinde	2023-11-07	$44,111,000
11253933	Non-orthogonal cube corner elements and arrays thereof made by end milling	Christopher Grinde, Todd A. Ballen, Kenneth L. Smith	2022-02-22	$24,190,000
10502875	Microtiled prismatic cube corner articles	Kenneth L. Smith, Todd A. Ballen	2019-12-10	$41,236,000
9703023	Microtiled prismatic cube corner articles	Kenneth L. Smith, Todd A. Ballen	2017-07-11	$16,013,000
7510462	Multi-diamond cutting tool assembly for creating microreplication tools	William J. Bryan, Jeffrey E. Clements, Greg E. Schrank, Jennifer L. Trice, Timothy L. Hoopman +1 more	2009-03-31	$26,856,000
7401396	Methods of making microstructured lamina and apparatus	Lars A. Smeenk, Conrad V. Anderson, Kenneth L. Smith	2008-07-22	$25,428,000
7174619	Methods of making microstructured lamina and apparatus	Lars A. Smeenk, Conrad V. Anderson, Kenneth L. Smith	2007-02-13	$23,235,000
7140812	Diamond tool with a multi-tipped diamond	William J. Bryan, Jeffrey E. Clements	2006-11-28	$9,230,000
6935756	Retroreflective articles having moire-like pattern	Kenneth L. Smith, David W. Meitz, Madeleine B. Fleming, John C. Nelson	2005-08-30	$30,924,000
6843571	Methods of making a master and replicas thereof	Kenneth L. Smith, David W. Meitz, Madeleine B. Fleming, John C. Nelson	2005-01-18	$23,114,000
6129540	Production tool for an abrasive article and a method of making same	Timothy L. Hoopman	2000-10-10	$57,003,000
6076248	Method of making a master tool	Timothy L. Hoopman	2000-06-20	$32,916,000

Nelson D. Sewall — 12 Patents

Issued Patents All Time

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