David A. Opperman

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Littleton, CO, US

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Patents Grantslast 30 patents

Information Patent Grant
Specimen marking mechanism
- Patent number 11,464,599
- Issue date Oct 11, 2022
- MarginView, LLC
- David Opperman
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Retractor and tip extender therefor
- Patent number 11,432,716
- Issue date Sep 6, 2022
- COLORADO VOICE CLINIC, P.C.
- David A. Opperman
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Retractor and tip extender therefor
- Patent number 10,349,823
- Issue date Jul 16, 2019
- COLORADO VOICE CLINIC, P.C.
- David A. Opperman
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Retractor
- Patent number 10,238,373
- Issue date Mar 26, 2019
- COLORADO VOICE CLINIC, P.C.
- David A. Opperman
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Surgical specimen marking mechanism
- Patent number 10,111,727
- Issue date Oct 30, 2018
- DB PATENT HOLDING COMPANY, LLC
- David Andrew Opperman
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Nasal cannula comfort tip
- Patent number 9,750,915
- Issue date Sep 5, 2017
- David A. Opperman
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

Information Patent Application
METHOD OF MARKING A SPECIMEN
- Publication number 20230310113
- Publication date Oct 5, 2023
- MarginView, LLC
- David Opperman
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Specimen Marking Clip
- Publication number 20220401180
- Publication date Dec 22, 2022
- MarginView, LLC
- David Opperman
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
RETRACTOR AND TIP EXTENDER THEREFOR
- Publication number 20200375446
- Publication date Dec 3, 2020
- Colorado Voice Clinic, P.C.
- David A. Opperman
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
RETRACTOR
- Publication number 20190082947
- Publication date Mar 21, 2019
- David A. Opperman
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
RETRACTOR AND TIP EXTENDER THEREFOR
- Publication number 20190076138
- Publication date Mar 14, 2019
- David A. Opperman
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Surgical Specimen Marking Mechanism
- Publication number 20160331485
- Publication date Nov 17, 2016
- David Andrew Opperman
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Nasal Cannula Comfort Tip
- Publication number 20130333705
- Publication date Dec 19, 2013
- David A. Opperman
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE