Peter Dilling has been granted 40 US patents. The first was granted in 1980 and the most recent in November 1999. Peter Dilling ranks #78,057 of 4,157,543 US inventors in our database (top 1.9%). Patent records list Peter Dilling in Charleston, SC, US.
Patents per Year Patents granted per year, 1980 to 1999 Bar chart with a peak of 8 patents in 1988. peak 8 1980: 1 patents 1980 1981: 2 patents 1982: 2 patents 1982 1984: 2 patents 1985: 4 patents 1985 1986: 3 patents 1987: 4 patents 1987 1988: 8 patents 1989: 1 patents 1989 1990: 3 patents 1991: 5 patents 1991 1998: 2 patents 1999: 3 patents 1999
Issued Patents All Time
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Showing 1–25 of 40 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
5989299 Mixtures of amine modified lignin with sulfonated lignin for disperse dye Gamini S. Samaranayake 1999-11-23
$28,415,000
5980589 High activity sulfonated lignin dye dispersants Sallie B. Huguenin 1999-11-09
$28,849,000
5972047 Amine modified sulfonated lignin for disperse dye Gamini S. Samaranayake , Staci L. Waldrop 1999-10-26
$12,952,000
5755830 Method of preparing high activity sulfonated lignin dye dispersants Sallie B. Huguenin 1998-05-26
$6,526,000
5749926 Method of preparing high activity sulfonated lignin dye dispersants Sallie B. Huguenin 1998-05-12
$14,658,000
5049661 Sulfonation of lignins — 1991-09-17
$15,265,000
5043433 Oleum sulfonation of lignins — 1991-08-27
$4,098,000
5043432 Sulfonation of lignins — 1991-08-27
$4,098,000
5043434 Oleum sulfonation of lignins — 1991-08-27
$4,098,000
5013825 Sulfation of lignin — 1991-05-07
$6,256,000
4892587 Lignosulfonate additive-containing carbon black compositions Gerald Prazak , Catherine C. Cashman 1990-01-09
$3,626,000
4892588 Production of lignosulfonate additives Vaughn R. Loeffler , Gerald Prazak , Karin U. Thomas 1990-01-09
$3,626,000
4891070 Lignin amine salt as binder for aqueous printing ink composition Mitchell S. Dimitri 1990-01-02
$8,608,000
4797157 Amine salts of lignosulfonates Humbert Thomas Dellicolli , James E. Davis 1989-01-10
$10,862,000
4764597 Method for methylolation of lignin materials — 1988-08-16
$4,396,000
4751247 Amine salts of lignosulfonates Humbert Thomas Dellicolli , James E. Davis 1988-06-14
$15,151,000
4748235 Method of producing improved amine salts of lignosulfonates Susan L. Schlegel 1988-05-31
$13,980,000
4743268 Dispersant composition for azo dyestuffs contaminated with soluble copper impurities — 1988-05-10
$6,664,000
4740590 Method for preparing low electrolyte sodium lignosulfonates — 1988-04-26
$4,667,000
4740591 Lignin by-products of paper-making process Mitchell S. Dimitri 1988-04-26
$4,667,000
4732572 Amine salts of sulfomethylated lignin — 1988-03-22
$13,557,000
4721778 Ammonium lignosulfonates — 1988-01-26
$14,237,000
4715864 Lignosulfonate salts for use as dyestuff additives Susan L. Schlegel 1987-12-29
$13,993,000
4670482 Ammonium lignosulfonates — 1987-06-02
$5,566,000
4642336 Ammonium lignosulfonates — 1987-02-10
$12,017,000