P

Inventor

HALGREN DONALD N

US39 patents
⚠️ This page may combine multiple inventors who share the name “HALGREN DONALD N”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

(unassigned)

19 patents
US5742241AApr 21, 1998

Flexible data entry panel

111 citations99
US5666112ASep 9, 1997

Key for flexible keyboard

148 citations99
US5493702AFeb 20, 1996

Antenna transmission coupling arrangement

193 citations99
US5459461AOct 17, 1995

Inflatable keyboard

127 citations99
US5711014AJan 20, 1998

Antenna transmission coupling arrangement

94 citations98
US5648771AJul 15, 1997

Wrist rest bag for flexible keyboard

47 citations96
US6635035B1Oct 21, 2003

Tissue irrigation arrangement

73 citations94
US6598922B2Jul 29, 2003

Pickup truck bed extender apparatus

57 citations94
US6313762B1Nov 6, 2001

Keyboard with keys for moving cursor

31 citations93
US6112106AAug 29, 2000

Antenna transmission coupling arrangement

41 citations93
US6064343AMay 16, 2000

Antenna coupling arrangement

23 citations93
US6052071AApr 18, 2000

Keyboard with keys for moving cursor

28 citations93
US5691716ANov 25, 1997

Keyboard with keys for moving cursor

27 citations93
US5851477ADec 22, 1998

Reinforced tubing manufacture by a plastic processing screw machine

20 citations92
US5642109AJun 24, 1997

Flexible inflatable multi-chamber signal generator

13 citations74
US6074578AJun 13, 2000

Barrel wall conduit arrangements for a plastic processing screw machine

10 citations73
US5945061AAug 31, 1999

Method of input for a plasticating machine through a jewel orifice

9 citations73
US5744092AApr 28, 1998

Axially movable cluster conduits for plastic processing in a screw machine

7 citations73
US5932154AAug 3, 1999

Process of making a plastic part with a retrofitted screw machine

10 citations64

AMBIT CORP

8 patents

CROWLEY ROBERT J

6 patents

SURGIQUEST INC

4 patents

STUBBS JACK B

1 patent

DMX INC

1 patent