Inventor

David A. Tomkins

Inventor

Racine, WI, US

Overview

13→

Patents

1987–2021

Patent span

Human necessities

Primary field (CPC A)

Patents· 13 as inventor

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

B05Bprimary

B05BSpraying apparatus39%

A61LMethods or apparatus for sterilising materials or objects in general21%

A01MCatching, trapping or scaring of animals18%

A01NPreservation of bodies of humans or animals or plants or parts thereof4%

A63HToys, e.g. tops, dolls, hoops or building blocks4%

B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers4%

C23FNon-mechanical removal of metallic material from surface4%

G06FElectric digital data processing4%

H05BElectric heating4%

PatentTitleYear

11,119,913Selective use of garbage collection during expansion of geometry addressable regions of a redundant array of independent drive (RAID) configuration2021 7,687,744'Coordinated emission of fragrance, light, and sound'2010 7,610,118'Dispensing of multiple volatile substances'2009 7,017,829'Atomizer wicking system'2006 6,843,430'Low leakage liquid atomization device'2005 6,752,327'Atomizer with tilted orifice plate and replacement reservoir for same'2004 6,450,419'Self contained liquid atomizer assembly'2002 6,382,522'Attachment method for piezoelectric elements'2002 6,378,780'Delivery system for dispensing volatiles'2002 6,341,732'Method and apparatus for maintaining control of liquid flow in a vibratory atomizing device'2002 6,293,474'Delivery system for dispensing volatiles'2001 5,400,975'Actuators for electrostatically charged aerosol spray systems'1995 4,668,507'Corrosion resistant insecticial composition'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–2010Patents assigned to JOHNSON & SON INC S C (12)· patent assignee history

1987–2010Based in Racine, WI, US· patent location history

2004Based in Racione, WI, US· patent location history

2021Patents assigned to IBM (1)· patent assignee history

2021Based in Hook, GB· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
JOHNSON & SON INC S C	12	1987–2010
IBM	1	2021

Locations

Location	Patents	Span
Racine, WI, US	11	1987–2010
Hook, GB	1	2021
Racione, WI, US	1	2004