Inventor · disambiguated record
Douglas B. Pearl
Also filed as: PEARL DOUGLAS · PEARL DOUGLAS B
16 granted patents·2 pending applications·112 citations·filing 1980–2021
92Inventor score
Top patents by PatentIndex Score
18 records- 0194US10281067B2High pressure fittingUNIWELD PRODUCTS INC·Filed 2018·Granted May 7, 2019·8 cites·12 claims
- 0285US4294481AGas cylinder carrierUNIWELD PRODUCTS INC·Filed 1980·Granted Oct 13, 1981·39 cites·3 claims
- 0382US10226810B2Expanding tool and methodUNIWELD PRODUCTS INC·Filed 2017·Granted Mar 12, 2019·1 cites·9 claims
- 0481US9383046B2High pressure fittingUNIWELD PRODUCTS INC·Filed 2013·Granted Jul 5, 2016·4 cites·12 claims
- 0580US11143445B2Refrigeration hose with multiple access points and method of evacuating an air conditioning or refrigeration unit using the sameUNIWELD PRODUCTS INC·Filed 2015·Granted Oct 12, 2021·2 cites·4 claims
- 0680US9897237B2Method of coupling high pressure fittingUNIWELD PRODUCTS INC·Filed 2015·Granted Feb 20, 2018·2 cites·7 claims
- 0778USD453953SManifoldUNIWELD PRODUCTS INC·Filed 2001·Granted Feb 26, 2002·24 cites·1 claims
- 0876US10066769B2High pressure fittingUNIWELD PRODUCTS INC·Filed 2018·Granted Sep 4, 2018·1 cites·8 claims
- 0972US6318173B1Gauge having an indicia-bearing insertUNIWELD PRODUCTS INC·Filed 2000·Granted Nov 20, 2001·13 cites·10 claims
- 1062US11389856B2Expanding tool and methodUNIWELD PRODUCTS INC·Filed 2019·Granted Jul 19, 2022·0 cites·3 claims
- 1162US11268742B2Refrigerant charging tool and methodUNIWELD PRODUCTS INC·Filed 2017·Granted Mar 8, 2022·0 cites·2 claims
- 1255US6094983AGauge having an indicia-bearing insertUNIWELD PRODUCTS INC·Filed 1998·Granted Aug 1, 2000·14 cites·9 claims
- 1349US2021247013A1Tamper-Resistant Locking Device And MethodUNIWELD PRODUCTS INC·Filed 2021·Application pending·0 cites
- 1448US9803901B2Vaporizing refrigerant charging tool with visual inspection windowPEARL II DAVID S·Filed 2011·Granted Oct 31, 2017·0 cites·11 claims
- 1547US9987730B2Dual function adapter and methodUNIWELD PRODUCTS INC·Filed 2015·Granted Jun 5, 2018·0 cites·5 claims
- 1647US9328870B2Flow regulator for nitrogen purging, system and methodUNIWELD PRODUCTS INC·Filed 2014·Granted May 3, 2016·0 cites·15 claims
- 1742USD465259SManifold bodyUNIWELD PRODUCTS INC·Filed 1999·Granted Nov 5, 2002·4 cites·1 claims
- 1842US2020041060A1Tool And Method For Additive Introduction Into Closed SystemsUNIWELD PRODUCTS INC·Filed 2018·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →