Assignee
STAEDTLER J S
9 granted patents·81 citations·filing 1975–1981
Top patents by PatentIndex Score
9 records- 0162US4304330ACase for writing utensilsSTAEDTLER J S·Filed 1979·Granted Dec 8, 1981·24 cites·9 claims
- 0257US4393022AEraser and process for its manufactureSTAEDTLER J S·Filed 1981·Granted Jul 12, 1983·12 cites·2 claims
- 0354US4578420AEraser with thermoplastic binderSTAEDTLER J S·Filed 1981·Granted Mar 25, 1986·12 cites·3 claims
- 0445US4335033AEraser and process for its manufactureSTAEDTLER J S·Filed 1979·Granted Jun 15, 1982·6 cites·6 claims
- 0536US4023974AUnburnt lead refill for writing and drawing pencilsSTAEDTLER J S·Filed 1975·Granted May 17, 1977·4 cites·5 claims
- 0631US4350787AThermoplastic eraserSTAEDTLER J S·Filed 1981·Granted Sep 21, 1982·8 cites·8 claims
- 0730US4224000ATubular drafting pen with improved writing point assemblySTAEDTLER J S·Filed 1978·Granted Sep 23, 1980·4 cites·10 claims
- 0829US4160256ATubular pen for recording apparatusSTAEDTLER J S·Filed 1977·Granted Jul 3, 1979·6 cites·9 claims
- 0923US4230413AMechanical pencil having collet guideSTAEDTLER J S·Filed 1977·Granted Oct 28, 1980·5 cites·4 claims
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