Inventor
KRAEMER NELSON
US49 patents
⚠️ This page may combine multiple inventors who share the name “KRAEMER NELSON”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RIDDELL
41 patentsUS7954177B2Jun 7, 2011
Sports helmet
RIDDELL95 citations99
USD603099SOct 27, 2009
Sports helmet
RIDDELL139 citations99
US7240376B2Jul 10, 2007
Sports helmet
RIDDELL125 citations99
US7146652B2Dec 12, 2006
Face guard connector assembly for a sports helmet
RIDDELL68 citations99
US6934971B2Aug 30, 2005
Football helmet
RIDDELL209 citations99
US5263203ANov 23, 1993
Integrated pump mechanism and inflatable liner for protective
RIDDELL276 citations99
US10136692B2Nov 27, 2018
Sports helmet
RIDDELL50 citations98
US9656148B2May 23, 2017
Football helmet with recessed face guard mounting areas
RIDDELL42 citations98
US9314063B2Apr 19, 2016
Football helmet with impact attenuation system
RIDDELL71 citations98
US8938818B2Jan 27, 2015
Sports helmet
RIDDELL48 citations98
US7900279B2Mar 8, 2011
Sports helmet with clamp for securing a chin protector
RIDDELL77 citations98
USD528705SSep 19, 2006
Football helmet
RIDDELL79 citations98
USD511026SOct 25, 2005
Sport helmet
RIDDELL74 citations98
USD492818SJul 6, 2004
Jaw pad for a protective helmet
RIDDELL90 citations98
USD475486SJun 3, 2003
Inflatable crown liner for a protective helmet
RIDDELL118 citations98
US6081932AJul 4, 2000
Chin strap assembly for use with an athletic helmet
RIDDELL95 citations98
US5794274AAug 18, 1998
Chin protector for helmets
RIDDELL105 citations98
US5035009AJul 30, 1991
Protective helmet and liner
RIDDELL251 citations98
US7036151B2May 2, 2006
Face guard for a sports helmet
RIDDELL47 citations96
US11503872B2Nov 22, 2022
Protective sports helmet
RIDDELL20 citations94
US11311067B2Apr 26, 2022
Protective sports helmet
RIDDELL21 citations94
US10932514B2Mar 2, 2021
Protective sports helmet
RIDDELL18 citations94
US10856600B2Dec 8, 2020
Quick release connector
RIDDELL20 citations94
US10506841B2Dec 17, 2019
Football helmet with recessed face guard mounting areas
RIDDELL14 citations94
US9788591B2Oct 17, 2017
Quick release connector
RIDDELL29 citations94
USD916385SApr 13, 2021
Football helmet
RIDDELL16 citations93
US10561193B2Feb 18, 2020
Protective sports helmet
RIDDELL15 citations93
USD856600SAug 13, 2019
Football helmet
RIDDELL23 citations93
US10271605B2Apr 30, 2019
Protective sports helmet
RIDDELL18 citations93
USD358686SMay 23, 1995
Faceguard for a batter's helmet
RIDDELL35 citations93
US9756889B2Sep 12, 2017
Protective sports helmet chinstrap assembly
RIDDELL17 citations92
USD465067SOct 29, 2002
Football helmet
RIDDELL156 citations92
US11166511B2Nov 9, 2021
Protective sports helmet chinstrap assembly
RIDDELL14 citations90
US10143257B2Dec 4, 2018
Protective sports helmet
RIDDELL4 citations84
US8813271B2Aug 26, 2014
Shoulder pads
RIDDELL6 citations84
USD838922SJan 22, 2019
Football helmet
RIDDELL10 citations83
US10874162B2Dec 29, 2020
Protective sports helmet
RIDDELL8 citations81
US11910859B2Feb 27, 2024
Football helmet with impact attenuation system
RIDDELL3 citations75
US10582737B2Mar 10, 2020
Football helmet with impact attenuation system
RIDDELL1 citations73
US12514319B2Jan 6, 2026
American football helmet
RIDDELL0 citations63
US12317946B2Jun 3, 2025
Protective sports helmet chinstrap assembly
RIDDELL0 citations62
BOLOGNA VITTORIO
3 patentsUS8813269B2Aug 26, 2014
Sports helmet with quick-release faceguard connector and adjustable internal pad element
BOLOGNA VITTORIO64 citations98
US9763488B2Sep 19, 2017
Protective sports helmet
BOLOGNA VITTORIO67 citations97
US8056151B2Nov 15, 2011
Buckle for a chin strap assembly for a sports helmet
BOLOGNA VITTORIO35 citations92