Assignee
PROTOTYPES LTD
GB·4 granted patents·963 citations·filing 1984–1988
Top patents by PatentIndex Score
4 records- 0199US4826515AVacuum cleaning apparatusPROTOTYPES LTD·Filed 1988·Granted May 2, 1989·335 cites·23 claims
- 0299US4573236AVacuum cleaning appliancesPROTOTYPES LTD·Filed 1984·Granted Mar 4, 1986·268 cites·17 claims
- 0398US4571772AUpright vacuum cleaning appliancePROTOTYPES LTD·Filed 1984·Granted Feb 25, 1986·201 cites·20 claims
- 0497US4593429AVacuum cleaning appliancePROTOTYPES LTD·Filed 1984·Granted Jun 10, 1986·159 cites·14 claims
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