Inventor

Frederick H. Humphrey

Inventor

Markham, CA

Overview

8→

Patents

1976–2015

Patent span

Performing operations

Primary field (CPC B)

Patents· 8 as inventor

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

F04Bprimary

F04BPositive-displacement machines for liquids11%

A45CPurses5%

B05BSpraying apparatus5%

B23PMetal-working not otherwise provided for5%

B29CShaping or joining of plastics5%

B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts5%

B29LIndexing scheme associated with subclass b29c, relating to particular articles5%

B41JTypewriters5%

B60FVehicles for use both on rail and on road5%

B63CLaunching, hauling-out, or dry-docking of vessels5%

PatentTitleYear

9,097,788'Baggage tracker'2015 5,520,138'Amphibious boat'1996 4,526,195'Reinforced plastic structure such as a valve'1985 4,155,207'Cable-wrapped fiberglass reinforced plastic bin'1979 4,096,438'Wall thickness gauge and method utilizing a reed switch and magnet means on opposite sides of the wall'1978 4,071,134'Typing error correction device'1978 4,068,777'Expansible bottom structure for fiberglass reinforced plastic tanks'1978 3,948,420'Elastomeric pumps'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1996Based in Markham, CA· patent location history

1978–1979Patents assigned to METAL CLADDING INC (2)· patent assignee history

1978Patents assigned to HUMPHREY FREDERICK H (1)· patent assignee history

1978Patents assigned to HUMPHREY FREDERICK HAROLD (1)· patent assignee history

2015Patents assigned to HUMPHREY EMILY (1)· patent assignee history

2015Patents assigned to HUMPHREY FREDERICK (1)· patent assignee history

2015Based in Jacksonville, NC, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
METAL CLADDING INC	2	1978–1979
HUMPHREY EMILY	1	2015
HUMPHREY FREDERICKself	1	2015
HUMPHREY FREDERICK Hself	1	1978
HUMPHREY FREDERICK HAROLDself	1	1978

Locations

Location	Patents	Span
Markham, CA	7	1976–1996
Jacksonville, NC, US	1	2015