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Inventor

David C. Calvo

Inventor
Alexandria, VA, US

Overview

3→
Patents
2013–2021
Patent span
Physics
Primary field (CPC G)

Patents· 3 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

A63Bprimary
A63BApparatus for physical training, gymnastics, swimming, climbing, or fencing33%
G01MTesting static or dynamic balance of machines or structures33%
G10KSound-producing devices33%
PatentTitleYear
11,007,393Variable weight equipment with liquid resistance20219,922,638'Acoustic fresnel zone plate lens for aqueous environments and methods of using same'20188,578,759'Undersea pipeline intrusion detection system using low-frequency guided acoustic waves and distributed optical fiber'2013

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2013–2018Patents assigned to CALVO DAVID C (2)· patent assignee history
2013–2018Patents assigned to US NAVY (2)· patent assignee history
2013Patents assigned to BINGHAM JILL P (1)· patent assignee history
2013Patents assigned to NICHOLAS MICHAEL (1)· patent assignee history
2013–2018Based in Alexandria, VA, US· patent location history
2021Patents assigned to NUCLEUS CORE LLC (1)· patent assignee history
2021Based in Los Angeles, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CALVO DAVID Cself22013–2018
US NAVY22013–2018
BINGHAM JILL P12013
NICHOLAS MICHAEL12013
NUCLEUS CORE LLC12021
Locations
LocationPatentsSpan
Alexandria, Virginia, US22013–2018
Los Angeles, California, US12021