Pieter Gerard van 't Hof

Person

Delft, NL

People

Patents Grantslast 30 patents

Information Patent Grant
Acoustic filter with enhanced valve stroke
- Patent number 11,438,709
- Issue date Sep 6, 2022
- SONOVA AG
- Adrian Lara-Quintanilla
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Earplug and method for attenuating sound
- Patent number 11,291,586
- Issue date Apr 5, 2022
- SONOVA AG
- Pieter Gerard Van 'T Hof
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Acoustic valve and ear plug for hearing protection
- Patent number 11,273,076
- Issue date Mar 15, 2022
- SONOVA AG
- Pieter Gerard van't Hof
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Acoustic filter with attenuation control
- Patent number 11,266,532
- Issue date Mar 8, 2022
- SONOVA AG
- Pieter Gerard Van 'T Hof
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Method and system for testing a mould shape quality of a user-custo...
- Patent number 9,930,454
- Issue date Mar 27, 2018
- Dynamic Ear Company B.V.
- Pieter Gerard van't Hof
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
ACOUSTIC FILTER WITH ENHANCED VALVE STROKE
- Publication number 20210409874
- Publication date Dec 30, 2021
- Sonova AG
- Adrian LARA-QUINTANILLA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ACOUSTIC FILTER WITH ATTENUATION CONTROL
- Publication number 20200352788
- Publication date Nov 12, 2020
- DYNAMIC EAR COMPANY B.V.
- Pieter Gerard VAN 'T HOF
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
EARPLUG AND METHOD FOR ATTENUATING SOUND
- Publication number 20190321230
- Publication date Oct 24, 2019
- DYNAMIC EAR COMPANY B.V.
- Pieter Gerard VAN 'T HOF
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
ACOUSTIC FILTER AND METHOD OF MANUFACTURING
- Publication number 20180277087
- Publication date Sep 27, 2018
- DYNAMIC EAR COMPANY B.V.
- Pieter Gerard VAN 'T HOF
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
ACOUSTIC VALVE AND EAR PLUG FOR HEARING PROTECTION
- Publication number 20170202710
- Publication date Jul 20, 2017
- DYNAMIC EAR COMPANY B.V.
- Pieter Gerard van 't Hof
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
METHOD AND SYSTEM FOR TESTING A MOULD SHAPE QUALITY OF A USER-CUSTO...
- Publication number 20160241967
- Publication date Aug 18, 2016
- DYNAMIC EAR COMPANY B.V.
- Pieter Gerard van 't Hof
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Pieter Gerard van 't Hof

Person

Patents Grantslast 30 patents

Acoustic filter with enhanced valve stroke

Earplug and method for attenuating sound

Acoustic valve and ear plug for hearing protection

Acoustic filter with attenuation control

Method and system for testing a mould shape quality of a user-custo...

Patents Applicationslast 30 patents

ACOUSTIC FILTER WITH ENHANCED VALVE STROKE

ACOUSTIC FILTER WITH ATTENUATION CONTROL

EARPLUG AND METHOD FOR ATTENUATING SOUND

ACOUSTIC FILTER AND METHOD OF MANUFACTURING

ACOUSTIC VALVE AND EAR PLUG FOR HEARING PROTECTION

METHOD AND SYSTEM FOR TESTING A MOULD SHAPE QUALITY OF A USER-CUSTO...