# US 9,750,588 B1 · Toothbrush > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,750,588 B1 - Document ID: US9750588B1 - Status: Granted - Kind: B1 - Application number: 14/918,469 - Filed: 2015-10-20 - Granted: 2017-09-05 - Earliest claimed: 2015-10-20 - Applicants: Michael Harmoush - Inventors: Michael Harmoush - Web page: https://patentgrep.com/patent/US9750588B1 ## CPC - A61C 17/349: {with multiple brush bodies} - A46B 5/0008: {Brushes with two or more heads on the same end of a handle not intended for simultaneous use} - A46B 5/021: {Grips or handles specially adapted to conform to the hand} - A46B 9/04: {Arranged like in or} for toothbrushes - A61C 17/222: {Brush body details, e.g. the shape thereof or connection to handle} - A46B 9/045: {specially adapted for cleaning a plurality of tooth surfaces simultaneously} - A61C: DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE (non-driven toothbrushes A46B; {tongue scrapers A61B17/24;} preparations for dentistry A61K6/00; preparations for cleaning the teeth or mouth A61K8/00, A61Q11/00) - A46B: BRUSHES (handles not integral with brushware B25G) ## Abstract A toothbrush configured to provide improved cleaning of the rear surface of the upper and lower central and lateral incisors. The toothbrush includes a handle having a first end and a second end. The handle further includes an upper surface and a lower surface and additionally a middle portion intermediate the first end and second end. Secured to the first end is a first bristle group that is configured to extend downward therefrom. Adjacent to the first bristle group is a divider. The divider include a first surface proximate the first bristle group and a second surface opposite thereto. A second bristle group is secured to the second surface of the divider and extends toward said second end of said handle being perpendicular in orientation to said first bristle group. A recess is formed in the lower surface of the handle above the second bristle group. ## Claims ### Claim 1 A toothbrush comprising: a handle, said handle having a first end and a second end, said handle having an upper surface and a lower surface; a head, said head having a first bristle group, said first bristle group being proximate said first end of said handle, said first bristle group including a plurality of nylon bristles, said first bristle group extending downward from said first end; said head further including a divider, said divider being proximate said first bristle group distal to said first end, said divider being integrally formed with said handle, said divider extending downward from said first end, said divider being parallel with said first bristle group; said head having a second bristle group, said second bristle group being secured to said divider, said second bristle group being perpendicular to said divider, said second bristle group having a plurality of bristles, said plurality of bristles having a first end and a second end, said second end being distal to said divider; a recess, said recess being formed in said lower surface of said handle, said recess being located above said second bristle group; and a first pad, said first pad being secured to said handle on said lower surface thereof, said first pad being proximate said second ends of the bristles of said second bristle group. ### Claim 2 (depends on 1) The toothbrush as recited in claim 1, and further including a second pad, said second pad being secured to said divider distal to said handle. ### Claim 3 (depends on 2) The toothbrush as recited in claim 2, wherein said handle is either manual or electric. ### Claim 4 (depends on 3) The toothbrush as recited in claim 3, wherein said divider includes a lower end and an upper end, said divider being a consistent thickness intermediate said lower end and said upper end. ### Claim 5 (depends on 4) The toothbrush as recited in claim 4, wherein said recess in manufactured having a depth within the range of one-eighth of an inch to on-quarter of an inch. ### Claim 6 A toothbrush configured to have more than one bristle group comprising: a handle, said handle having a first end and a second end, said handle further including a head proximate said first end, said handle having an upper surface and a lower surface, said handle further including a middle portion intermediate said first end and said second end, said handle being manufactured from a rigid material; a first bristle group, said first bristle group being proximate said first end of said handle, said first bristle group including a plurality of nylon bristles, said first bristle group extending downward from said lower surface of said handle proximate said first end; a divider, said divider being proximate said first bristle group distal to said first end, said divider being integrally formed with said handle, said divider extending downward from said first end and being perpendicular thereto, said divider being parallel with said first bristle group, said divider having a first surface and a second surface, said divider having a lower end and an upper end; a second bristle group, said second bristle group being secured to said second surface of divider and configured to extend towards said second end of said handle, said second bristle group being perpendicular to said divider, said second bristle group having a plurality of bristles, said plurality of bristles having a first end and a second end, said second end being distal to said divider; a first pad, said first pad being secured to said handle on said lower surface thereof, said first pad being proximate said second ends of the bristles of said second bristle group; and a recess, said recess being formed in said lower surface of said handle, said recess being located above said second bristle group and forward of said first pad. ### Claim 7 (depends on 6) The toothbrush as recited in claim 6, and further including a second pad, said second pad being secured to said upper end of said divider. ### Claim 8 (depends on 7) The toothbrush as recited in claim 7, wherein said divider includes a lower end and an upper end, said divider being a consistent thickness intermediate said lower end and said upper end. ### Claim 9 (depends on 8) The toothbrush as recited in claim 8, wherein said handle is selected from one of the following types of handles: manual or electric. ### Claim 10 (depends on 9) The toothbrush as recited in claim 9, wherein said recess in manufactured having a depth within the range of one-eighth of an inch to on-quarter of an inch. ### Claim 11 A toothbrush having two bristle groups wherein the toothbrush is configured to provide improved cleaning of the rear surface of central and lateral incisors comprising: a handle, said handle having a first end and a second end, said handle having an upper surface and a lower surface, said handle further including a middle portion intermediate said first end and said second end, said handle being manufactured from a rigid material; a first bristle group, said first bristle group being proximate said first end of said handle, said first bristle group including a plurality of nylon bristles, said first bristle group extending downward from said lower surface of said handle proximate said first end; a divider, said divider being proximate said first bristle group distal to said first end, said divider being integrally formed with said handle, said divider extending downward from said first end and being perpendicular thereto, said divider being parallel with said first bristle group, said divider having a first surface and a second surface, said divider having a lower end and an upper end; a second bristle group, said second bristle group being secured to said second surface of divider and configured to extend towards said second end of said handle, said second bristle group being perpendicular to said divider, said second bristle group having a plurality of bristles, said plurality of bristles having a first end and a second end, said second end being distal to said divider; a first pad, said first pad being secured to said handle on said lower surface thereof, said first pad being proximate said second ends of the bristles of said second bristle group; a recess, said recess being formed in said lower surface of said handle, said recess being located above said second bristle group and forward of said first pad. ### Claim 12 (depends on 11) The toothbrush as recited in claim 11, wherein said divider includes a lower end and an upper end, said divider being a consistent thickness intermediate said lower end and said upper end. ### Claim 13 (depends on 12) The toothbrush as recited in claim 12, wherein said upper surface of said handle at said middle portion is curved in manner having a radius of 2.7 inches.