Inventor

Philip J. Sheppard

Inventor

Ipswich, GB

Overview

3→

Patents

1998–2004

Patent span

Performing operations

Primary field (CPC B)

Patents· 3 as inventor

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

B09Bprimary

B09BDisposal of solid waste not otherwise provided for14%

B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers14%

B66FHoisting, lifting, hauling or pushing, not otherwise provided for, e.g. devices which apply a lifting or pushing force directly to the surface of a load14%

G10LSpeech analysis techniques or speech synthesis14%

H04BTransmission14%

H04MTelephonic communication14%

Y10TTechnical subjects covered by former us classification14%

PatentTitleYear

6,752,244'Apparatus for draining fluids from vehicles'2004 6,078,567'Echo cancellation using cross-correlation of buffered receive and transmit sample segments to determine cancelling filter coefficients'2000 5,848,384'Analysis of audio quality using speech recognition and synthesis'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–2000Patents assigned to BRITISH TELECOMM (2)· patent assignee history

1998–2000Based in Ipswich, GB· patent location history

2004Patents assigned to SHEPPARD HOLDINGS LTD (1)· patent assignee history

2004Based in Calgary, CA· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BRITISH TELECOMM	2	1998–2000
SHEPPARD HOLDINGS LTD	1	2004

Locations

Location	Patents	Span
Ipswich, GB	2	1998–2000
Calgary, CA	1	2004