Richard Douglas Stillwell

Follow

Person

Melville, NY, US

People

Patents Grantslast 30 patents

Information Patent Grant
Drumhead with reduced volume
- Patent number 11,854,514
- Issue date Dec 26, 2023
- D'Addario & Company, Inc.
- Ryan Gorman
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Film formed snare and reduced volume snare drumhead
- Patent number 11,189,255
- Issue date Nov 30, 2021
- D'Addario & Company, Inc.
- Ryan Gorman
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Rapid connect snare assembly
- Patent number 10,861,425
- Issue date Dec 8, 2020
- D'Addario & Company, Inc.
- James D'Addario
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Percussive instrument mallet
- Patent number 10,360,880
- Issue date Jul 23, 2019
- D'Addario & Company, Inc.
- Elijah Navarro
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Drumhead With Reduced Volume
- Publication number 20210125590
- Publication date Apr 29, 2021
- D'Addario & Company, Inc.
- Ryan Gorman
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Application
Film Formed Snare and Reduced Volume Snare Drumhead
- Publication number 20210090531
- Publication date Mar 25, 2021
- D'Addario & Company, Inc.
- Ryan Gorman
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Application
Rapid Connect Snare Assembly
- Publication number 20200402483
- Publication date Dec 24, 2020
- D'Addario & Company, Inc.
- James D'Addario
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Application
Percussive Instrument Mallet
- Publication number 20180322852
- Publication date Nov 8, 2018
- D'Addario & Company, Inc.
- Elijah Navarro
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL