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Donald J. Heil
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Lake Villa, IL, US
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Patents Grants
last 30 patents
Information
Patent Grant
Angles hose connection for dental handpiece
Patent number
8,562,342
Issue date
Oct 22, 2013
Dentsply International Inc.
Tom Papanek
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Dental prophylaxis angle and handpiece assembly
Patent number
7,955,079
Issue date
Jun 7, 2011
Dentsply International, Inc.
Benjamin Chronister
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Dental handpiece with spring grip chuck and lever release mechanism
Patent number
5,040,980
Issue date
Aug 20, 1991
Midwest Dental Products Corporation
Donald J. Heil
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Quick connect/disconnect coupling for dental handpieces
Patent number
5,039,304
Issue date
Aug 13, 1991
Midwest Dental Products Corporation
Donald J. Heil
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Dental handpiece connector assembly with replaceable air-cooled lam...
Patent number
5,033,960
Issue date
Jul 23, 1991
Midwest Dental Products Corporation
Donald J. Heil
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Water/air spray system for dental handpiece
Patent number
4,340,366
Issue date
Jul 20, 1982
American Hospital Supply Corporation
Donald J. Heil
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Fluid spray system for dental handpiece
Patent number
4,330,279
Issue date
May 18, 1982
American Hospital Supply Corporation
Donald J. Heil
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Spring grip chuck assembly for dental handpieces
Patent number
4,089,115
Issue date
May 16, 1978
American Hospital Supply Corporation
Donald J. Heil
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Patents Applications
last 30 patents
Information
Patent Application
DENTAL PROPHYLAXIS ANGLE AND HANDPIECE ASSEMBLY
Publication number
20120107769
Publication date
May 3, 2012
DENTSPLY INTERNATIONAL INC.
Benjamin CHRONISTER
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
Angles hose connection for dental handpiece
Publication number
20090269717
Publication date
Oct 29, 2009
Thomas Papanek
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
Dental prophylaxis angle and handpiece assembly
Publication number
20090162811
Publication date
Jun 25, 2009
Benjamin Chronister
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
ANGLED HOSE CONNECTION FOR DENTAL HANDPIECE
Publication number
20080003537
Publication date
Jan 3, 2008
DENTSPLY INTERNATIONAL INC.
Thomas PAPANEK
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
Dental handpiece
Publication number
20070031786
Publication date
Feb 8, 2007
Donald J. Heil
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
Dental handpiece
Publication number
20030219698
Publication date
Nov 27, 2003
Donald J. Heil
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE