P

Inventor

DUCKWORTH DAVID G

US8 patents
⚠️ This page may combine multiple inventors who share the name “DUCKWORTH DAVID G”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SHIPMAN MICHAEL

3 patents
US7172303B2Feb 6, 2007

Illuminated keyboard

SHIPMAN MICHAEL81 citations97
US8890720B2Nov 18, 2014

Illuminated keyboard

SHIPMAN MICHAEL11 citations83
US8690368B1Apr 8, 2014

Cavity filled lightpipe for illuminating keys of a keyboard

SHIPMAN MICHAEL17 citations83

BP CORP NORTH AMERICA INC

2 patents
US9626091B2Apr 18, 2017

Centralizers for centralizing well casings

BP CORP NORTH AMERICA INC0 citations49
US9725967B2Aug 8, 2017

Centralizers for centralizing well casings

BP CORP NORTH AMERICA INC0 citations38

ATC TECH LLC

1 patent
US7174127B2Feb 6, 2007

Data communications systems and methods using different wireless links for inbound and outbound data

ATC TECH LLC255 citations97

(unassigned)

1 patent
US6619523B1Sep 16, 2003

Backpack including integral vibration damper

61 citations93

HULINA DONNA

1 patent
USD661912SJun 19, 2012

Door hanger clip

HULINA DONNA0 citations35