DB

Donald D. Bartholomew

PT Proprietary Technology: 99 patents #1 of 1Top 100%
📍 Marine City, MI: #1 of 44 inventorsTop 3%
🗺 Michigan: #215 of 86,293 inventorsTop 1%
Overall (All Time): #13,249 of 4,157,543Top 1%
105
Patents All Time

Issued Patents All Time

Showing 26–50 of 105 patents

Patent #TitleCo-InventorsDate
5568948 Apparatus for attaching hoses and tubes to a fitting 1996-10-29
5566722 Self locking slitted corrugated tubing 1996-10-22
5551732 Quick connector 1996-09-03
5546985 Quick connect fluid coupling 1996-08-20
5544923 Apparatus for attaching hoses and tubes to a fitting 1996-08-13
5538316 Air movement profiler 1996-07-23
5531560 Motorcycle towing device 1996-07-02
5524939 Apparatus for and method of attaching hoses and tubes to a fitting 1996-06-11
5505230 Means for protecting conducting equipment 1996-04-09
5425557 Apparatus for and method of attaching hoses and tubes to a fitting 1995-06-20
5413387 Swivelable quick connector assembly 1995-05-09
5400776 Apparatus for maintaining a bend in a medical insufflation tube 1995-03-28
5388870 Apparatus for and method of attaching hoses and tubes to a fitting 1995-02-14
5386795 Combination pill bottle cap and indicator device 1995-02-07
5295718 End terminating means for plastic and rubber conduit 1994-03-22
5296536 Polymer based articles having increased structural rigidity 1994-03-22
5261706 Apparatus for attaching a hose to a fitting 1993-11-16
5232252 Adaptive connector assembly 1993-08-03
5216975 Combination pill bottle cap and indicator device 1993-06-08
5207462 Apparatus and method for a push assemble retaining ring 1993-05-04
5197698 Method of mounting and isolating automotive exhaust systems 1993-03-30
5195787 Quick connector with heavy-duty retainer 1993-03-23
5179922 Apparatus for determining change of fuel flow 1993-01-19
5171028 Snap and lock quick connector 1992-12-15
5160121 Shock absorbing compressional mounting apparatus 1992-11-03