P

Inventor

ANDERSON ROBERT R

US11 patents
⚠️ This page may combine multiple inventors who share the name “ANDERSON ROBERT R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ANDERSON RICHARD H

5 patents
US5324224AJun 28, 1994

Spherical construction toy and light apparatus

ANDERSON RICHARD H97 citations95
US5279039AJan 18, 1994

Three-dimensional drawing device

ANDERSON RICHARD H6 citations72
US5212874AMay 25, 1993

Three-dimensional drawing device

ANDERSON RICHARD H11 citations72
US5038482AAug 13, 1991

Three-dimensional drawing device

ANDERSON RICHARD H7 citations72
US5148601ASep 22, 1992

Spherical drawing template

ANDERSON RICHARD H4 citations61

(unassigned)

3 patents
US5570849ANov 5, 1996

Tub grinder

30 citations91
US5427528AJun 27, 1995

Activity toy and method of using to form artwork

23 citations91
US5878968AMar 9, 1999

Tub grinder apparatus

5 citations51

HAYBUSTER MANUFACTURING

1 patent
US4449672AMay 22, 1984

Machine for loading and disintegrating large bales of forage material

HAYBUSTER MANUFACTURING56 citations94

ANDERSON ROBERT R

1 patent
US5207391AMay 4, 1993

Tub grinder

ANDERSON ROBERT R43 citations89

HALLIDAY & CO INC

1 patent
US4032773AJun 28, 1977

Flashlight

HALLIDAY & CO INC25 citations72