Inventor · disambiguated record
Paul Friedrich
Also filed as: FRIEDRICH PAUL · FRIEDRICH PAUL H
15 granted patents·335 citations·filing 1983–2023
93Inventor score
Files withDA INTERNATIONAL LTD4EVEREST & JENNINGS4BELL & HOWELL CO2HYDRO MAGIC LLC2BELL & HOWELL DOCUMENT MANAGEM1
Top patents by PatentIndex Score
15 records- 0182US4768797AFolding wheelchair having adjustable wheels and armrestsEVEREST & JENNINGS·Filed 1987·Granted Sep 6, 1988·79 cites·21 claims
- 0277US6302429B1Convertible wheelchairDA INTERNATIONAL LTD·Filed 1999·Granted Oct 16, 2001·69 cites·6 claims
- 0377US6227752B1Failsafe weld-free method of joining tubular elementsDA INTERNATIONAL LTD·Filed 1999·Granted May 8, 2001·46 cites·19 claims
- 0473USD306712SWheelchair frameEVEREST & JENNINGS·Filed 1987·Granted Mar 20, 1990·14 cites·1 claims
- 0565US11980851B2Apparatus for controlled release of an erodible solid into a liquidHYDRO MAGIC LLC·Filed 2023·Granted May 14, 2024·0 cites·18 claims
- 0663US5253888ARigid frame weldless wheelchairDA INTERNATIONAL LTD·Filed 1993·Granted Oct 19, 1993·46 cites·18 claims
- 0756US4577505ASpecial angle beam probe for ultrasonic testingKRAFTWERK UNION AG·Filed 1984·Granted Mar 25, 1986·17 cites·25 claims
- 0854US6270105B1Method of wheelchair constructionDA INTERNATIONAL LTD·Filed 1999·Granted Aug 7, 2001·31 cites·3 claims
- 0952US11623186B2Apparatus for controlled release of an erodible solid into a liquidHYDRO MAGIC LLC·Filed 2021·Granted Apr 11, 2023·0 cites·14 claims
- 1052US10965343B1Signal analyzer and method for analyzing signalsROHDE & SCHWARZ·Filed 2019·Granted Mar 30, 2021·0 cites·24 claims
- 1150US4626099AFilm duplication system for microimage recordersBELL & HOWELL CO·Filed 1985·Granted Dec 2, 1986·7 cites·34 claims
- 1245US5467164ADocument processing system having a straight line document pathBELL & HOWELL DOCUMENT MANAGEM·Filed 1993·Granted Nov 14, 1995·7 cites·23 claims
- 1341US4489980AAdjustable arm rest trigger handleEVEREST & JENNINGS·Filed 1983·Granted Dec 25, 1984·15 cites·3 claims
- 1438USD322949SWheelchair frameEVEREST & JENNINGS·Filed 1989·Granted Jan 7, 1992·2 cites·1 claims
- 1528US4699504AControl system for microimage recordersBELL & HOWELL CO·Filed 1986·Granted Oct 13, 1987·2 cites·38 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →