Inventor · disambiguated record
Herbert W. Copelan
Also filed as: COPELAN HERBERT W
7 granted patents·187 citations·filing 1989–2002
87Inventor score
Files withCOPELAN HERBERT W3
Top patents by PatentIndex Score
7 records- 0188US5526568ARazor with switch for perpendicular and limited oblique angle shavingFiled 1993·Granted Jun 18, 1996·97 cites·9 claims
- 0259US6620384B2Double handhold to prevent urine-test cheatingFiled 2002·Granted Sep 16, 2003·5 cites·2 claims
- 0349US6331278B1Self-contained double handhold for preventing false urine specimensFiled 2001·Granted Dec 18, 2001·8 cites·10 claims
- 0449US5039616AMethod for prevention of specimen tampering in substance abuse testing and test area relating theretoCOPELAN HERBERT W·Filed 1989·Granted Aug 13, 1991·33 cites·39 claims
- 0543US5603903ASpecimen-container holder apparatus to prevent cross contaminationFiled 1995·Granted Feb 18, 1997·11 cites·1 claims
- 0636US5133935ATest area for prevention of specimen tampering in substance abuse testingCOPELAN HERBERT W·Filed 1991·Granted Jul 28, 1992·25 cites·18 claims
- 0730US5223221AMethod to prevent tampering with urine specimens and the means relating theretoCOPELAN HERBERT W·Filed 1992·Granted Jun 29, 1993·8 cites·27 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →