# US 12,759,337 B2 · Pen having a knife sharpener

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- Number: US 12,759,337 B2
- Document ID: US12759337B2
- Status: Granted
- Kind: B2
- Application number: 18/962,339
- Filed: 2024-11-27
- Published: 2025-06-05
- Granted: 2026-10-13
- Earliest claimed: 2023-12-01
- Applicants: Avid Labs, LLC
- Inventors: Joel A. Nichols; Benjamin R. Powers
- Web page: https://patentgrep.com/patent/US12759337B2

## CPC

- B43K 29/06: with sharpening devices (with erasing knives B43K29/18; pocket knives with pencils B26B)
- B24B 3/543: {using hand or foot driven tools}
- B43K 5/005: {Pen barrels}
- B43K 5/02: Ink reservoirs
- B43K 5/16: with retractable nibs (mechanisms for retracting or locking nibs B43K24/00)
- B43K 25/02: Clips
- B43K: IMPLEMENTS FOR WRITING OR DRAWING (containers, casings or accessories for cosmetic substances, e.g. shaving soap, lipstick, make-up A45D34/00, A45D40/00)
- B24B: MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING (grinding of gear teeth B23F, of screw-threads B23G1/36; by electro-erosion B23H; abrasive or related blasting B24C; tools for grinding, buffing or sharpening B24D; polishing compositions C09G1/00; abrasives C09K3/14; electrolytic etching or polishing C25F3/00; grinding arrangements for use on assembled railway tracks E01B31/17); DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS

## Abstract

An apparatus including a body configured to house a writing tool therein and a sharpener connected to the body. The sharpener is configured to allow a user to sharpen a knife by gripping the body and sliding the knife on the sharpener.

## Claims

### Claim 1

A writing tool comprising:
a barrel shaped body;
a sharpener attached to the barrel shaped body along its length, the sharpener configured to allow a user to sharpen a knife by gripping the barrel shaped body and sliding the knife on the sharpener, wherein:
the sharpener is coaxial with the barrel shaped body; and
a longitudinal axis of the sharpener is parallel to a longitudinal axis of the barrel shaped body.

### Claim 2 (depends on 1)

The writing tool of claim 1, wherein:
the sharpener comprises stainless steel.

### Claim 3 (depends on 1)

The writing tool of claim 1, wherein:
the barrel shaped body comprises an annular groove forming a recessed section; and
the sharpener is fitted over the recessed section of the barrel shaped body.

### Claim 4 (depends on 1)

The writing tool of claim 1, wherein:
the barrel shaped body comprises a side cutout forming a recessed section; and
the sharpener is disposed in the recessed section of the barrel shaped body.

### Claim 5 (depends on 1)

The writing tool of claim 1, wherein:
the barrel shaped body including a recessed section; and
an arm is pivotally connected to the barrel shaped body, the arm configured to selectively reveal the sharpener.

### Claim 6 (depends on 5)

The writing tool of claim 5, wherein:
at least a portion of the sharpener is located on the arm; and
the arm is configured to rotate in between a stowed position in which the sharpener is hidden and an extended position in which a longitudinal axis of the arm is parallel to a longitudinal axis of the barrel shaped body.

### Claim 7 (depends on 5)

The writing tool of claim 5, wherein:
the sharpener is located within the recessed section of the barrel shaped body, and the arm is configured to selectively extend over and cover the sharpener.

### Claim 8 (depends on 1)

The writing tool of claim 1, wherein the sharpener comprises:
a first surface profile configured for sharpening the knife; and
a second surface profile configured for honing the knife.

### Claim 9 (depends on 1)

The writing tool of claim 1, further comprising:
a handguard connected to the barrel shaped body and configured to protect a hand of the user when the user is sharpening the knife.

### Claim 10 (depends on 9)

The writing tool of claim 9, wherein:
the handguard comprises a first guard member and a second guard member, each guard member pivotally connected to the barrel shaped body and configured to rotate in between a stowed position wherein each guard member is substantially parallel to the barrel shaped body and an operational position wherein each guard member is substantially perpendicular to the barrel shaped body.

### Claim 11 (depends on 10)

The writing tool of claim 10, wherein:
each guard member comprises a rod.

### Claim 12

An apparatus, comprising:
a body configured to house a writing tool therein; and
a sharpener connected to the body, the sharpener configured to allow a user to sharpen a knife by gripping the body and sliding the knife on the sharpener, wherein:
a clip is connected to the body; and
the sharpener is located on one of a side surface and a top surface of the clip.