Inventor · disambiguated record
Hans-Joachim Friedrich
Also filed as: FRIEDRICH HANS · FRIEDRICH HANS J · FRIEDRICH HANS-JOACHIM
8 granted patents·1 pending application·354 citations·filing 1974–2005
90Inventor score
Top patents by PatentIndex Score
9 records- 0192US4755401AArtificial turf with playing field markingsADOLFF J F AG·Filed 1987·Granted Jul 5, 1988·117 cites·10 claims
- 0290US4007307AArtificial lawnADOLFF J F AG·Filed 1974·Granted Feb 8, 1977·58 cites·22 claims
- 0387US4535021ABacking mat for a ground covering, preferably for a water-permeable artificial grass, as well as a method for its productionADOLFF J F AG·Filed 1984·Granted Aug 13, 1985·51 cites·14 claims
- 0485US4735825AMethod of applying and bonding free-flowing bulb material to artificial grassADOLFF J F AG·Filed 1987·Granted Apr 5, 1988·49 cites·2 claims
- 0576US5019194AMethod for manufacturing a web of plastic turf for sports groundsADOLFF J F AG·Filed 1989·Granted May 28, 1991·21 cites·9 claims
- 0672US4444815AWater permeable ground covering for open spacesADOLFF J F AG·Filed 1983·Granted Apr 24, 1984·28 cites·6 claims
- 0768US6311850B1Pressure screening apparatus for screening a paper stock suspension and screen clearer for such a screening apparatusVOITH SULZER PAPIERTECH PATENT·Filed 2000·Granted Nov 6, 2001·11 cites·67 claims
- 0864US4477299AMethod of bonding a floor-covering web with a backing webADOLFF J F AG·Filed 1982·Granted Oct 16, 1984·19 cites·10 claims
- 0941US2006000764A1Pressurized screen for screening a fibrous suspensionVOITH PAPER PATENT GMBH·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →