# US 11,026,397 B2 · Cat litter product

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- Number: US 11,026,397 B2
- Document ID: US11026397B2
- Status: Granted
- Kind: B2
- Application number: 16/679,743
- Filed: 2019-11-11
- Published: 2020-03-05
- Granted: 2021-06-08
- Earliest claimed: 2011-06-15
- Applicants: Oil-Dri Corporation of America
- Inventors: Monika Kuras; George Robert Goss; Dan Jaffee; Bob Soral
- Web page: https://patentgrep.com/patent/US11026397B2

## CPC

- A01K 1/0154: {comprising inorganic material}
- A01K 1/0155: {comprising organic material}
- A01K: ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS

## Abstract

Litter compositions are provided comprising sodium bentonite and various fillers. These litter compositions have substantially the same clumpability properties as a composition consisting of only the sodium bentonite.

## Claims

### Claim 1

A litter comprising:
45% to 80% by weight of sodium bentonite, wherein the sodium bentonite comprises at least 47% of an external surface area of the litter, and
20% to 55% by weight of a non-clumping filler material,
wherein the litter has a bulk density less than about 58 lb/ft3, wherein the litter when exposed to a wetting agent forms at least one clump, and wherein each at least one clump is mechanically separable from unwetted litter for disposal.

### Claim 2 (depends on 1)

The litter of claim 1 wherein the litter has a bulk density less than about 47 lb/ft3.

### Claim 3 (depends on 1)

The litter of claim 1 wherein the litter has an average clump strength, 30 seconds after the at least one clump is formed, that is greater than or equal to 1.33 as determined by the testing of three clumps using the Standard Drop Method Test.

### Claim 4 (depends on 1)

The litter of claim 1 wherein the litter has an average clump strength, 1 hour after the at least one clump is formed, that is greater than or equal to 1.33 determined by the testing of three clumps using the Standard Drop Method Test.

### Claim 5 (depends on 1)

The litter of claim 1 wherein the litter has an average clump strength, 12 hours after the at least one clump is formed, that is greater than or equal to 1.33 determined by the testing of three clumps using the Standard Drop Method Test.

### Claim 6 (depends on 1)

The litter of claim 1 wherein the litter has an average clump strength, 12 hours after the at least one clump is formed, that is greater than or equal to 1.33 determined by the testing of three clumps using the Standard Drop Method Test.

### Claim 7

A litter comprising:
45% to 80% by weight of sodium bentonite, wherein sodium bentonite comprises at least 47% of an external surface area of the litter, and wherein the litter when exposed to a wetting agent forms at least one clump.

### Claim 8 (depends on 7)

The litter of claim 7 wherein the litter has a bulk density less than about 58 lb/ft3.

### Claim 9 (depends on 7)

The litter of claim 7 wherein the litter has a bulk density less than about 47 lb/ft3.

### Claim 10 (depends on 7)

The litter of claim 7 wherein each at least one clump is mechanically separable from unwetted litter for disposal.

### Claim 11 (depends on 7)

The litter of claim 7 further comprising 20% to 55% by weight of a non-clumping filler material.

### Claim 12 (depends on 7)

The litter of claim 7 further comprising a clumping agent.

### Claim 13 (depends on 10)

The litter of claim 10 wherein the at least one clump remains substantially intact after 30 seconds.

### Claim 14 (depends on 10)

The litter of claim 10 wherein the at least one clump remains substantially intact after 1 hour.

### Claim 15 (depends on 10)

The litter of claim 10 wherein the at least one clump remains substantially intact after 24 hours.

### Claim 16 (depends on 10)

The litter of claim 10 wherein the litter has a bulk density less than about 58 lb/ft3.

### Claim 17 (depends on 10)

The litter of claim 10 wherein the litter has a bulk density less than about 47 lb/ft3.

### Claim 18 (depends on 10)

The litter of claim 10 further comprising a clumping agent.

### Claim 19 (depends on 10)

The litter of claim 10 further comprising a fragrance.