DN

Donald G. Needham

PP Phillips Petroleum: 12 patents #139 of 1,401Top 10%
PC Polyplus Co.: 4 patents #1 of 5Top 20%
Overall (All Time): #148,146 of 4,157,543Top 4%
27
Patents All Time

Issued Patents All Time

Showing 1–25 of 27 patents

Patent #TitleCo-InventorsDate
5900203 Method of making load-bearing structures William Kinzie, James H. Harris 1999-05-04
5888612 Load-bearing structures William Kinzie, James H. Harris 1999-03-30
5776582 Load-bearing structures with interlockable edges 1998-07-07
5607531 Filament coating process William Kinzie, James H. Harris 1997-03-04
5571435 Welding rod having parallel electrical pathways 1996-11-05
5532282 Polyolefin-based composition for rotational molding 1996-07-02
5530055 Nucleated polyolefin-based composition for rotational molding 1996-06-25
5455288 Dustless color concentrate granules 1995-10-03
5405567 Molding of articles from plastics William Kinzie, Bill V. Smith 1995-04-11
D355064 Pallet William Kinzie, Bill V. Smith 1995-01-31
5366675 Foamable polyethylene-based composition for rotational molding 1994-11-22
5367025 Crosslinkable polyethylene-based composition for rotational molding 1994-11-22
5260381 Crosslinkable polyethylene-based composition for rotational molding 1993-11-09
D331309 Book shelf bank 1992-11-24
D300659 Test specimen holder 1989-04-11
4788232 Pigment concentrates for resins 1988-11-29
4720514 Pigment concentrates for resins 1988-01-19
4668461 Polymers and rotationally molding same 1987-05-26
4654225 Laser printable polyarylene sulfide compositions process for encapsulating articles with optional laser printing John E. Leland 1987-03-31
4600736 Pigment concentrates for resins 1986-07-15
4560580 Process for encapsulating articles with optional laser printing John E. Leland 1985-12-24
4501843 Composition of polymer of olefin with mixed mineral filler 1985-02-26
4487879 Filled arylene sulfide polymer compositions containing (a) glass filter in combination with (b) a mineral filler 1984-12-11
4443571 Laser printable polyarylene sulfide compositions John E. Leland 1984-04-17
4337182 Poly (arylene sulfide) composition suitable for use in semi-conductor encapsulation 1982-06-29