1
Srikrishna Talluri: Multi-layered, impact absorbing, modular helmet. August 15, 2006: US07089602 (46 worldwide citation)

An impact absorbing, modular helmet that prevents or reduces injury to the user and other parties in a collision is described. The helmet has layers on the outer side of the hard casing that increase the time of impact and thereby reduces the intensity of the impact forces to reduce their injury pot ...


2
Erin Linn Hanson, Wallace Lee Hanson Jr, Robert F Hoskin: Protective helmet cap. Baker Hostetler, March 6, 2018: US09907346

The present disclosure provides an apparatus for use in reducing the impact to the head during sporting activities. The present disclosure provides a helmet cap that covers an underlying hard shell helmet. The helmet cap has a durable, energy absorbing outer shell, which lessens the initial impact t ...


3
Srikrishna Talluri: Multi-layered, impact absorbing, modular helmet. Srikrishna Talluri, Apt 121, December 30, 2004: US20040261157-A1

An impact absorbing, modular helmet that prevents or reduces injury to the user and other parties in a collision is described. The helmet has layers on the outer side of the hard casing that increase the time of impact and thereby reduces the intensity of the impact forces to reduce their injury pot ...


4
Protective Helmet Cap. May 24, 2018: US20180140036-A1

The present disclosure provides an apparatus for use in reducing the impact to the head during sporting activities. The present disclosure provides a helmet cap that covers an underlying hard shell helmet. The helmet cap has a durable, energy absorbing outer shell, which lessens the initial impact t ...


5
Protective Helmet Cap. February 21, 2019: US20190053564-A1

The present disclosure provides an apparatus for use in reducing the impact to the head during sporting activities. The present disclosure provides a helmet cap that covers an underlying hard shell helmet. The helmet cap has a durable, energy absorbing outer shell, which lessens the initial impact t ...


6
PROTECTIVE HELMET COVERS WITH INFLATABLE BLADDERS. May 2, 2019: US20190125025-A1

Protective headgear assemblies are provided that reduces the impact forces by spreading them laterally and uses air to resist the impact forces and decrease the rate of deceleration of the human head on impact, can have an energy absorbent inflatable outer shell made of uniformly consistent viscoela ...