Inventor · disambiguated record
Richard T. Metcalfe
Also filed as: METCALFE RICHARD · METCALFE RICHARD T
18 granted patents·394 citations·filing 1975–2020
95Inventor score
Files withCABOT SAFETY CORP8AMERICAN OPTICAL CORP7CABOT SAFETY INTERMEDIATE CORP1DE ROTH LTD1SALCE ARTHUR J1
Top patents by PatentIndex Score
18 records- 0191USD320478SFaceshieldCABOT SAFETY CORP·Filed 1988·Granted Oct 1, 1991·34 cites·1 claims
- 0288US4950445AMethod of vacuum forming disposable faceshieldCABOT SAFETY CORP·Filed 1988·Granted Aug 21, 1990·62 cites·10 claims
- 0387USD328084SProtective goggleSALCE ARTHUR J·Filed 1988·Granted Jul 21, 1992·32 cites·1 claims
- 0477US4977627AProtective goggleAMERICAN OPTICAL CORP·Filed 1988·Granted Dec 18, 1990·107 cites·42 claims
- 0572USD311978SDisposable faceshieldAMERICAN OPTICAL CORP·Filed 1988·Granted Nov 6, 1990·13 cites·1 claims
- 0672US4699479AEyeglass frame structure and method of assembling sameAMERICAN OPTICAL CORP·Filed 1985·Granted Oct 13, 1987·39 cites·12 claims
- 0767US4046596AProcess for producing spectacle frames using an age-hardenable nickel-bronze alloyAMERICAN OPTICAL CORP·Filed 1975·Granted Sep 6, 1977·17 cites·5 claims
- 0862USD311782SDisposable faceshieldAMERICAN OPTICAL CORP·Filed 1988·Granted Oct 30, 1990·9 cites·1 claims
- 0962US4178081ASpectacles hingeAMERICAN OPTICAL CORP·Filed 1977·Granted Dec 11, 1979·13 cites·9 claims
- 1053US5088114ADisposable faceshield and method of manufacture thereofCABOT SAFETY CORP·Filed 1990·Granted Feb 18, 1992·17 cites·36 claims
- 1149USD333478SEyeglass safety frameCABOT SAFETY CORP·Filed 1991·Granted Feb 23, 1993·6 cites·1 claims
- 1249USD321958SDisposable faceshieldCABOT SAFETY CORP·Filed 1988·Granted Nov 26, 1991·5 cites·1 claims
- 1349USD321067SDisposable faceshieldCABOT SAFETY CORP·Filed 1989·Granted Oct 22, 1991·5 cites·1 claims
- 1449USD308582SDisposable faceshieldAMERICAN OPTICAL CORP·Filed 1988·Granted Jun 12, 1990·5 cites·1 claims
- 1546US6241352B1Lens overlays for eyewearCABOT SAFETY INTERMEDIATE CORP·Filed 1999·Granted Jun 5, 2001·15 cites·22 claims
- 1646USD348893SSemi-rimless safety frameCABOT SAFETY CORP·Filed 1992·Granted Jul 19, 1994·5 cites·1 claims
- 1738USD944497STurbanDE ROTH LTD·Filed 2020·Granted Mar 1, 2022·1 cites·1 claims
- 1837US5406337ASemi-rimless eyeglass frame assemblyCABOT SAFETY CORP·Filed 1992·Granted Apr 11, 1995·9 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →