Patent No. US11660257 (titled "Particulate Aerogel Material Kit For Grip Enhancement") was filed by Chalkless Inc on Jul 1, 2022.
’257 is related to the field of grip enhancement, specifically addressing the problem of reduced friction between human skin and solid surfaces due to factors like perspiration, natural oils, and surface smoothness. Traditional solutions like chalk, antiperspirants, and gloves have limitations, including messiness, ineffectiveness against existing moisture, and reduced dexterity. The invention aims to provide an improved method and material for enhancing grip in various applications.
The underlying idea behind ’257 is to utilize the unique properties of particulate aerogel material to increase friction between skin and a solid surface. The aerogel particles, when placed between the skin and the surface, increase the contact area and absorb moisture and oils, leading to a higher coefficient of friction. This approach leverages the high surface area and absorptive capabilities of aerogels to create a more secure grip.
The claims of ’257 focus on a grip enhancement kit comprising particulate aerogel material and a container. The container has a plurality of openings for dispensing the aerogel. The aerogel is in dry particulate form, not dispersed in a liquid. Furthermore, the claims specify that at least 50% of the aerogel particles have a maximum cross-sectional dimension of at least 50 nanometers.
In practice, the user applies the particulate aerogel material to their skin, either directly or indirectly (e.g., through a glove), and then grips the desired object. The aerogel particles create a high-friction interface , improving the user's hold. The material can be dispensed from various container types, including porous bags, perforated lids, or even pre-applied to fibrous sheets for convenient use.
This approach differentiates itself from existing solutions by providing a dry, highly porous material that both increases surface area and absorbs moisture. Unlike chalk, the hydrophobic aerogel resists water and doesn't mark surfaces. Unlike antiperspirants, it addresses existing moisture and increases surface area. Unlike gloves, it doesn't significantly reduce dexterity. The particulate nature also allows for easy and even application.
In the early 2020s, at a time when improving grip on surfaces was typically addressed through materials science and surface treatments, systems commonly relied on established methods such as applying coatings or using textured materials rather than novel particulate additives. Hardware or software constraints made precise control of friction and surface properties on a micro or nano scale non-trivial.
Claims 1-26 were rejected in a non-final office action. The examiner's rejection was based on obviousness over prior art. The applicant's arguments were considered but deemed moot. The rejection was made final.
This patent contains 26 claims, of which claims 1 and 11 are independent. The independent claims are directed to a grip enhancement kit comprising particulate or dry aerogel material and a container. The dependent claims generally elaborate on the features and characteristics of the container and the aerogel material.
Definitions of key terms used in the patent claims.

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