HW

Harold G. Waddill

Chevron: 62 patents #33 of 4,788Top 1%
🗺 Texas: #1,168 of 125,132 inventorsTop 1%
Overall (All Time): #37,122 of 4,157,543Top 1%
62
Patents All Time

Issued Patents All Time

Showing 26–50 of 62 patents

Patent #TitleCo-InventorsDate
4629769 4,4,6-trimethylhexahydropyrimidine as an epoxy curing agent George P. Speranza 1986-12-16
4609685 Polyether polyols modified with amino alcohol-epoxy resin adducts Michael Cuscurida 1986-09-02
4605688 Method for making syntactic foam with improved processing characteristics using a silane coupling agent in combination with an aminated alkylphenol alkoxylate Kathy B. Sellstrom 1986-08-12
4581423 Epoxy resin composition containing a curing agent which is a reaction product of hydantoins, formaldehyde and an amine George P. Speranza 1986-04-08
4581422 Epoxy resin composition containing a curing agent which is a reaction product of cyanoguanidine, formaldehyde and an amine George P. Speranza 1986-04-08
4581421 Epoxy resin composition containing a curing agent which is a reaction product of imidazole and an aldehyde George P. Speranza 1986-04-08
4578412 Extended amine curing agents [and epoxy resins cured therewith] Kathy B. Sellstrom 1986-03-25
4574143 Amine curing agents and epoxy resins cured therewith Kathy B. Sellstrom 1986-03-04
4552933 Extended amine curing agents and epoxy resins cured therewith Kathy B. Sellstrom 1985-11-12
4535133 Polyether polyols modified with epoxy resin-diamine adducts Michael Cuscurida 1985-08-13
4533719 Epoxy resins with increased flexibility 1985-08-06
4528308 Epoxy resin curatives 1985-07-09
4528345 Weather-resistant epoxy coatings 1985-07-09
4518749 Epoxy resin curatives Heinz Schulze 1985-05-21
4518720 Flexible polyurethane foams made from polyether polyols modified with epoxy resin-diamine adducts Michael Cuscurida, Bruce W. Peterson 1985-05-21
4487806 Decorative epoxy resin aggregate binder formulation Kathy B. Sellstrom 1984-12-11
4485229 Epoxy resin containing a combination of high and low molecular weight polyoxyalkylene polyamine curing agents Richard J. G. Dominguez 1984-11-27
4454297 2-[2-Aminoethoxy-2-ethylamino]alkanol as an epoxy curing agent Robert L. Zimmerman 1984-06-12
4423170 One component water reduced epoxy adhesives 1983-12-27
4421906 Water-based epoxy resin coating composition Kathy B. Sellstrom 1983-12-20
4420606 One component water reduced epoxy adhesives 1983-12-13
4403078 Epoxy resin composition David R. McCoy 1983-09-06
4383054 Hydrophilic high polymers prepared from aqueous solutions or dispersions of polyoxypropylene polyamine N-N'-polymethylene sulfonates Heinz Schulze 1983-05-10
4332720 N,N'-Polyoxyalkylene bis(lactam carboxylic acids) Heinz Schulze, Robert L. Zimmerman 1982-06-01
4326050 Process and product Heinz Schulze, Robert L. Zimmerman 1982-04-20