Inventor
SHIELDS ROBERT L
20 patents
⚠️ This page may combine multiple inventors who share the name “SHIELDS ROBERT L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHIELDS ROBERT L
10 patentsUS5088562AFeb 18, 1992
Hand aerator
SHIELDS ROBERT L25 citations92
USD299595SJan 31, 1989
Combined bench, golf ball washer and waste receptacle support
SHIELDS ROBERT L35 citations92
US4966238AOct 30, 1990
Hexagon turf plugger
SHIELDS ROBERT L20 citations81
USD306247SFeb 27, 1990
Golf green hole auger
SHIELDS ROBERT L18 citations81
US12296242B1May 13, 2025
Golf bell
SHIELDS ROBERT L3 citations74
US4982800AJan 8, 1991
Sod cutter
SHIELDS ROBERT L16 citations73
USD312543SDec 4, 1990
End standard for a bench
SHIELDS ROBERT L9 citations73
US4934464AJun 19, 1990
Sod cutter
SHIELDS ROBERT L13 citations73
USD306814SMar 27, 1990
Turf repair tool
SHIELDS ROBERT L9 citations73
US12478844B1Nov 25, 2025
Golf bell
SHIELDS ROBERT L0 citations62
SANDHOLM TUOMAS
4 patentsUS8195524B2Jun 5, 2012
Items ratio based price/discount adjustment in a combinatorial auction
SANDHOLM TUOMAS16 citations91
US8190489B2May 29, 2012
Bid modification based on logical connections between trigger groups in a combinatorial exchange
SANDHOLM TUOMAS10 citations82
US8190490B2May 29, 2012
Overconstraint detection, rule relaxation and demand reduction in a combinatorial exchange
SANDHOLM TUOMAS3 citations61
US8165921B1Apr 24, 2012
Dynamic exchange method and apparatus
SANDHOLM TUOMAS0 citations49