Inventor

James W. Walsh

Inventor

Baltimore, MD, US

Overview

14→

Patents

1978–1999

Patent span

Performing operations

Primary field (CPC B)

Patents· 14 as inventor

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

B01Dprimary

B01DSeparation11%

B08BCleaning in general11%

C23GCleaning or de-greasing of metallic material by chemical methods other than electrolysis11%

G01NInvestigating or analysing materials by determining their chemical or physical properties11%

G08BSignalling systems, e.g. personal calling systems11%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%

Y10TTechnical subjects covered by former us classification11%

E05BLocks7%

B01LChemical or physical laboratory apparatus for general use4%

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

PatentTitleYear

5,875,801'Aqueous cleaning of blade stack'1999 5,800,627'Aqueous cleaning of blade stack'1998 5,399,204'Aqueous cleaning method'1995 D0316901'Dropper tip or similar article'1991 4,927,062'Precision micro-liter drop dispenser'1990 4,892,662'Membrane processing method'1990 4,804,469'Flexible jacket membrane processing apparatus'1989 4,795,562'Membrane batch-processing apparatus'1989 4,600,914'Apparatus for directing attention to specific locations such as emergency exits'1986 4,540,208'Point-of-egress control device for safely securing emergency exit doors'1985 4,489,308'Emergency exit indicators'1984 4,470,625'Emergency exit door latch with hydraulic and electronic delay'1984 4,466,208'Emergency exit sign utilizing an electro-luminescent (EL) lamp and a brightness monitor'1984 4,086,427'Common shield-terminating connection in shielded wire bundle'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1991Based in Baltimore, MD, US· patent location history

1984Patents assigned to LOGAN JR EMANUEL L (2)· patent assignee history

1984–1985Patents assigned to RELIABLE SECURITY SYST (2)· patent assignee history

1984Patents assigned to WALSH J WILLIAM (2)· patent assignee history

1986–1991Patents assigned to WALSH JAMES W (6)· patent assignee history

1995–1999Patents assigned to GILLETTE CO (3)· patent assignee history

1995–1999Based in Wellesley Hills, MA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
WALSH JAMES Wself	6	1986–1991
GILLETTE CO	3	1995–1999
LOGAN JR EMANUEL L	2	1984
RELIABLE SECURITY SYST	2	1984–1985
WALSH J WILLIAMself	2	1984

Locations

Location	Patents	Span
Baltimore, Maryland, US	11	1978–1991
Wellesley Hills, Massachusetts, US	3	1995–1999