Riddell, Inc.
131Patents
100Active
131Granted
57Portfolio score
Filing activity: Jan 16, 1978 → Feb 13, 2024 · 15 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5263203A | Integrated pump mechanism and inflatable liner for protective | Emerging Cross-Sectional Technologies | 200 | Expired |
| US6826509B2 | System and method for measuring the linear and rotational acceleration of a body part | Human Necessities | 199 | Expired |
| US5035009A | Protective helmet and liner | Human Necessities | 196 | Expired |
| US6934971B2 | Football helmet | Emerging Cross-Sectional Technologies | 164 | Expired |
| US4287613A | Headgear with energy absorbing and sizing means | Human Necessities | 160 | Expired |
| USD465067S1 | Football helmet | General | 140 | Expired |
| US5175889A | Inflatable liner for protective headgear | Human Necessities | 139 | Expired |
| USD603099S1 | Sports helmet | General | 127 | Expired |
| US7526389B2 | Power management of a system for measuring the acceleration of a body part | Human Necessities | 119 | Expired |
| US7240376B2 | Sports helmet | Emerging Cross-Sectional Technologies | 105 | Expired |
| USD475486S1 | Inflatable crown liner for a protective helmet | General | 103 | Expired |
| US6871525B2 | Method and apparatus for testing football helmets | Physics | 92 | Expired |
| USD681281S1 | Protective sports helmet | General | 84 | Active |
| US4985931A | Shock absorbing pad structure for athletic equipment | Human Necessities | 83 | Expired |
| US7954177B2 | Sports helmet | Emerging Cross-Sectional Technologies | 80 | Active |
| USD492818S1 | Jaw pad for a protective helmet | General | 78 | Expired |
| US5029341A | Football shoulder pad | Emerging Cross-Sectional Technologies | 78 | Expired |
| US4831668A | Padding structure for use in protective headgear | Human Necessities | 77 | Expired |
| US5794274A | Chin protector for helmets | Human Necessities | 76 | Expired |
| US4646368A | Adjustable chin strap assembly for athletic helmets | Human Necessities | 74 | Expired |
| USD603100S1 | Sports helmet | General | 73 | Expired |
| USD528705S1 | Football helmet | General | 73 | Expired |
| USD511026S1 | Sport helmet | General | 70 | Expired |
| US6081932A | Chin strap assembly for use with an athletic helmet | Human Necessities | 67 | Expired |
| US9314063B2 | Football helmet with impact attenuation system | Human Necessities | 63 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.