Helmut Koch

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Concord, NH, US

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Patents Grantslast 30 patents

Information Patent Grant
Personal assistive lift device and related methods
- Patent number 10,932,967
- Issue date Mar 2, 2021
- William F. Haskett
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Special services add-on for dial pulse activated telephone switchin...
- Patent number 4,232,199
- Issue date Nov 4, 1980
- Summa Four, Inc.
- John T. Boatwright
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Personal Assistive Lift Device and Related Methods
- Publication number 20200100959
- Publication date Apr 2, 2020
- William F. HASKETT
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE