DR. DAVID ALAN HAMLIN, DMD
Dentist at Buckstown Rd, Langhorne, PA

6168433, Jan 2, 2001

Nov 30, 1999

9/451988

David A. Hamlin - Langhorne PA

A61C 306

433125

A dental prophy angle adapted to be engaged with a dental handpiece having a nose cone and a low-speed rotary driver within the nose cone. The prophy angle has a proximal end adapted to releasably engage with said nose cone, and a distal end having an implement-mounting member rotatable therein. A flexible shaft extends from the nose cone through the angle to the mounting member and has a diameter which is substantially smaller than the interior wall of the prophy angle. The shaft has a coupling member with a free axial end adapted to engage the rotary driver in the nose cone to be rotated upon rotation of said driver, and an opposite captive end connected to said shaft with a shoulder surrounding said flexible shaft and facing away from said free end to confront an abutment limiting axial displacement of said coupling member within the prophy angle. The flexible shaft is a steel cable comprising a plurality of multi-stranded steel cords twisted together to form a cable and encased in a sheath of polytetrafluoroethylene.

2006007, Apr 13, 2006

Oct 12, 2004

10/961023

David Hamlin - Langhorne PA, US

A61C 13/20, A61C 13/08, H05B 6/64, C04B 35/653

264016000, 264017000, 264019000, 264460000, 264489000, 065017300, 264332000

A dental prosthesis, such as a crown, a bridge, inlay, onlay, a laminate veneer or an artificial tooth, or a dental prosthesis base material, such as an abutment, an abutment having a post, or a post, is made with a low cost in a short time by using dental glass ionomer cement, which is excellent in cost, mechanical strength and biocompatibility and has fluorine sustained releasability in general, by a method comprising steps of enclosing a mixture of dental glass ionomer cement into a mold in a shape fitting to the dental prosthesis or the dental prosthesis base material to be made, putting the mold into water, irradiating the whole mold with a microwave, and curing the dental glass ionomer cement in a short time, thereby a conventional problem of slow curing reaction in dental glass ionomer cement is solved.

5408992, Apr 25, 1995

Nov 5, 1993

8/148097

David Hamlin - Langhorne PA
Arthur C. McKinley - Bradford MA
William Habermann - Blairstown NJ

British Technology Group USA Inc. - Gulph Mills PA

A01B 100

128 4

An inta-oral device for viewing the oral cavity comprises a handle having a tube extending therefrom for insertion into the oral cavity to be viewed; an optical system within the tube; a video camera within the handle and illuminating means for illuminating the cavity; and a removable, rigid, sterilizable sheath completely enclosing the tube and illuminating means to prevent their exposure to the oral cavity. The optical means provides a non-reversed image to appear on a video screen.

2011027, Nov 10, 2011

Nov 13, 2009

13/129210

David Hamlin - Langhorne PA, US
Satyanarayana Majeti - Liberty Township OH, US
Zbigniew Pietrzkowski - Aliso Viejo CA, US

A61K 9/00, A61K 36/82, A61P 1/02, A61K 36/18, A61K 36/752, A61K 36/87, A61K 36/45

424400, 424766, 424729, 424732, 424777, 424736, 424725

Various compositions and methods are provided to alleviate one or more symptoms associated with hyposalivation or xerostomia. Preferred compositions and methods employ one or more plant extracts and/or a proanthocyanidin at a concentration effective to reduce or eliminate the symptoms. Especially preferred extracts are isolated from a fruit and/or seed (e.g., grape, cranberry, blue berry, black berry, etc.), and where a second extract is present, such extract is preferably isolated from a citrus fruit (e.g., lemon, orange, lime, grapefruit, tangerine, mandarin orange, ugli fruit, etc.).

5690605, Nov 25, 1997

Apr 19, 1995

8/426608

David Hamlin - Langhorne PA
Arthur C. McKinley - Bradford MA
William Habermann - Blairstown NJ

A61B 104

600109

An endoscopic device includes an endoscopic tube for insertion into a cavity to be viewed; an optical system including a video camera and illuminating means for viewing the cavity, the image on the screen being a noninverted image; and a removable, rigid, sterilizable or discardable sheath completely enclosing the endoscopic tube and the illuminating means to prevent their exposure to the cavity environment.

RE36434, Dec 7, 1999

Nov 23, 1998

9/198099

David Hamlin - Langhorne PA
Arthur C. McKinley - Bradford MA
William Habermann - Blairstown NJ

A61B 104

600109

An endoscopic device includes an endoscopic tube for insertion into a cavity to be viewed; an optical system including a video camera and illuminating means for viewing the cavity, the image on the screen being a noninverted image; and a removable, rigid, sterilizable or discardable sheath completely enclosing the endoscopic tube and the illuminating means to prevent their exposure to the cavity environment.